135 (number)

	← 130 131 132 133 134 135 136 137 138 139 → List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred thirty-five
Ordinal	135th; (one hundred and thirty-fifth)
Factorization	33× 5
Divisors	1, 3, 5, 9, 15, 27, 45, 135
Roman numeral	CXXXV
Binary	100001112
Ternary	120003
Quaternary	20134
Quinary	10205
Senary	3436
Octal	2078
Duodecimal	B312
Hexadecimal	8716
Vigesimal	6F20
Base 36	3R36

135 (one hundred [and] thirty-five) is the natural number following 134 and preceding 136.

In mathematics

This number in base 10 can be expressed in operations using its own digits in at least two different ways. One is as a sum-product number,

$135 = (1 + 3 + 5)(1 \times 3 \times 5)$

(1 and 144 share this property) and the other is as the sum of consecutive powers of its digits:

$135 = 1^1 + 3^2 + 5^3$

(175, 518, and 598 also have this property).

135 is a Harshad number, and a repdigit in bases 18 and 26.

There are a total of 135 primes between 1,000 and 2,000.

$135 = 11 n^2 + 11 n + 3$ for $n = 3$ . This polynomial plays an essential role in Apéry's proof that $\zeta(2)$ is irrational.

KC-135 Stratotanker is a United States Air Force United States aerial refueling tanker aircraft in service since 1957
OC-135B Open Skies United States Air Force observation aircraft supports the flies unarmed observation flights over nations of the Treaty on Open Skies
United States Air Force C-135 derived from the Boeing 707 jetliner
USNS Mission Solano (AO-135) was a during World War II Mission Buenaventura Class fleet oilers during World War II
USS Bosque (APA-135) was a United States Navy Haskell-class attack transport during World War II
USS Flaherty (DE-135) was a United States Navy Edsall-class destroyer escort during World War II
USS General W. M. Black (AP-135) was a United States Navy General G. O. Squier-class transport ship during World War II
USS Los Angeles (CA-135) was a Baltimore class cruiser during World War II
USS Merganser (AM-135) was a United States Navy minesweeper during World War II
USS S-30 (SS-135) was an S-class submarine of the United States Navy during World War II
USS Tillman (DD-135) was a United States Navy Wickes class destroyer
USS Venus (AK-135) was a United States Navy Crater-class cargo ship during World War II
USS Weiss (APD-135) was a United States Navy Crosley class high-speed transport ship during the Battle of Guadalcanal
Electronic Attack Squadron 135 (VAQ-135) is a United States Navy electronic attack squadron stationed at Naval Air Station Whidbey Island, in Oak Harbor, Washington

The year AD 135 or 135 BC
135 AH is a year in the Islamic calendar that corresponds to 752 – 753 CE
135 Hertha is a large main belt asteroid which orbits among the Nysa asteroid family
135 film, the cartridge version of 35mm photographic film, used widely in still photography
The Canon FD 135 mm lens
In astrology, when two planets are 135 degrees apart, they are in an astrological aspect called a sesquiquadrate. The aspect was first used by Johannes Kepler
Sonnet 135 by William Shakespeare
Municipal District of Peace No. 135, a municipal district in northwest Alberta, Canada
Stony Plain 135 Indian reserve in Alberta, Canada is home to the Enoch Cree Nation
The EZ 135 Drive removable hard disk drive introduced by SyQuest Technology in 1995
NFL referee Pete Morelli has worn the uniform number 135 since 1997