90135956 has 12 divisors (see below), whose sum is σ = 158565120. Its totient is φ = 44831640.

The previous prime is 90135953. The next prime is 90135967. The reversal of 90135956 is 65953109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90135953) 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, 58226 + ... + 59753.

It is an arithmetic number, because the mean of its divisors is an integer number (13213760).

Almost surely, 2^90135956 is an apocalyptic number.

It is an amenable number.

90135956 is a deficient number, since it is larger than the sum of its proper divisors (68429164).

90135956 is a wasteful number, since it uses less digits than its factorization.

90135956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118174 (or 118172 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 90135956 is about 9493.9957868118. The cubic root of 90135956 is about 448.3660181101.

The spelling of 90135956 in words is "ninety million, one hundred thirty-five thousand, nine hundred fifty-six".