90136108 has 24 divisors (see below), whose sum is σ = 167714064. Its totient is φ = 42240000.

The previous prime is 90136099. The next prime is 90136117. The reversal of 90136108 is 80163109.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90136099) and next prime (90136117).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14428 + ... + 19708.

It is an arithmetic number, because the mean of its divisors is an integer number (6988086).

Almost surely, 2^90136108 is an apocalyptic number.

It is an amenable number.

90136108 is a deficient number, since it is larger than the sum of its proper divisors (77577956).

90136108 is a wasteful number, since it uses less digits than its factorization.

90136108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553 (or 5551 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 90136108 is about 9494.0037918678. The cubic root of 90136108 is about 448.3662701427.

The spelling of 90136108 in words is "ninety million, one hundred thirty-six thousand, one hundred eight".