The number 135 is an integer that follows 134 and precedes 136. It is an odd number and can be expressed as the sum of three consecutive integers: 44 + 45 + 46 = 135. In mathematics, 135 can be factored into prime numbers as 3 × 3 × 15 or 3^2 × 5 × 9. It is also notable for being a Harshad number, meaning it is divisible by the sum of its digits (1 + 3 + 5 = 9).