135 (number)

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

In mathematics

There are 135 total Krotenheerdt k-uniform tilings for k < 8, with no other such tilings for higher k. 135 is a Harshad number.

135 = 2⁷ + 7

135² + 1 = 18,226 = 2 × 13 × 701. Since 701, the largest prime factor, is greater than twice 135 (270), 135 is a Størmer number.

135 is a palindrome in base six: 135₁₀ = 343₆

In a regular octagon, each angle measures 135 degrees.

In other fields

• 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.

References