The number 135 is an integer that follows 134 and precedes 136. It is classified as a composite number, meaning it has divisors other than 1 and itself. The prime factorization of 135 is 3^3 × 5, indicating that it can be divided by 3 and 5. In mathematics, 135 is also notable for its properties in geometry. For example, the sum of the interior angles of a triangle is always 180 degrees, and 135 degrees is an angle that can be found in various geometric shapes, such as pentagons and octagons.