90161264 has 20 divisors (see below), whose sum is σ = 175155456. Its totient is φ = 44959872.

The previous prime is 90161249. The next prime is 90161287. The reversal of 90161264 is 46216109.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229 + ... + 13484.

Almost surely, 2^90161264 is an apocalyptic number.

It is an amenable number.

90161264 is a deficient number, since it is larger than the sum of its proper divisors (84994192).

90161264 is a wasteful number, since it uses less digits than its factorization.

90161264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15104 (or 15098 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90161264 is about 9495.3285356537. The cubic root of 90161264 is about 448.4079776337.

The spelling of 90161264 in words is "ninety million, one hundred sixty-one thousand, two hundred sixty-four".