135255915 has 48 divisors (see below), whose sum is σ = 240653088. Its totient is φ = 70253568.

The previous prime is 135255899. The next prime is 135255917. The reversal of 135255915 is 519552531.

135255915 is a `hidden beast` number, since 13 + 52 + 5 + 591 + 5 = 666.

It is not a de Polignac number, because 135255915 - 2⁴ = 135255899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135255915.

It is not an unprimeable number, because it can be changed into a prime (135255917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 340497 + ... + 340893.

It is an arithmetic number, because the mean of its divisors is an integer number (5013606).

Almost surely, 2^135255915 is an apocalyptic number.

135255915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135255915 is a deficient number, since it is larger than the sum of its proper divisors (105397173).

135255915 is a wasteful number, since it uses less digits than its factorization.

135255915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 585 counting only the distinct ones).

The product of its digits is 33750, while the sum is 36.

The square root of 135255915 is about 11629.9576525454. The cubic root of 135255915 is about 513.3167338292.

The spelling of 135255915 in words is "one hundred thirty-five million, two hundred fifty-five thousand, nine hundred fifteen".