135015808 has 32 divisors (see below), whose sum is σ = 269739000. Its totient is φ = 67316736.

The previous prime is 135015781. The next prime is 135015809. The reversal of 135015808 is 808510531.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 135015808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135015809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51063 + ... + 53641.

Almost surely, 2^135015808 is an apocalyptic number.

It is an amenable number.

135015808 is a deficient number, since it is larger than the sum of its proper divisors (134723192).

135015808 is an equidigital number, since it uses as much as digits as its factorization.

135015808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 135015808 is about 11619.6302867174. The cubic root of 135015808 is about 513.0128064065.

The spelling of 135015808 in words is "one hundred thirty-five million, fifteen thousand, eight hundred eight".