90100000136 has 32 divisors (see below), whose sum is σ = 179863309080. Its totient is φ = 42165734400.

The previous prime is 90100000117. The next prime is 90100000171. The reversal of 90100000136 is 63100000109.

It can be written as a sum of positive squares in 4 ways, for example, as 37130977636 + 52969022500 = 192694^2 + 230150^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1805495 + ... + 1854726.

Almost surely, 2^90100000136 is an apocalyptic number.

It is an amenable number.

90100000136 is a deficient number, since it is larger than the sum of its proper divisors (89763308944).

90100000136 is a wasteful number, since it uses less digits than its factorization.

90100000136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660425 (or 3660421 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 90100000136 in words is "ninety billion, one hundred million, one hundred thirty-six", and thus it is an aban number.