90122164 has 12 divisors (see below), whose sum is σ = 172051488. Its totient is φ = 40964600.

The previous prime is 90122161. The next prime is 90122183. The reversal of 90122164 is 46122109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90122161) 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, 1024072 + ... + 1024159.

It is an arithmetic number, because the mean of its divisors is an integer number (14337624).

Almost surely, 2^90122164 is an apocalyptic number.

It is an amenable number.

90122164 is a deficient number, since it is larger than the sum of its proper divisors (81929324).

90122164 is a wasteful number, since it uses less digits than its factorization.

90122164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048246 (or 2048244 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 90122164 is about 9493.2694052155. The cubic root of 90122164 is about 448.3431482890.

The spelling of 90122164 in words is "ninety million, one hundred twenty-two thousand, one hundred sixty-four".