90622723131 has 48 divisors (see below), whose sum is σ = 142370452224. Its totient is φ = 57494362464.

The previous prime is 90622723117. The next prime is 90622723151. The reversal of 90622723131 is 13132722609.

90622723131 is a `hidden beast` number, since 9 + 0 + 622 + 7 + 23 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 90622723131 - 2⁵ = 90622723099 is a prime.

It is a super-2 number, since 2×90622723131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90622723111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1059880 + ... + 1142186.

It is an arithmetic number, because the mean of its divisors is an integer number (2966051088).

Almost surely, 2^90622723131 is an apocalyptic number.

90622723131 is a deficient number, since it is larger than the sum of its proper divisors (51747729093).

90622723131 is a wasteful number, since it uses less digits than its factorization.

90622723131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82542 (or 82530 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 90622723131 in words is "ninety billion, six hundred twenty-two million, seven hundred twenty-three thousand, one hundred thirty-one".