90133023 has 16 divisors (see below), whose sum is σ = 122497920. Its totient is φ = 58936416.

The previous prime is 90133013. The next prime is 90133039. The reversal of 90133023 is 32033109.

It is not a de Polignac number, because 90133023 - 2⁴ = 90133007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90133003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53236 + ... + 54902.

It is an arithmetic number, because the mean of its divisors is an integer number (7656120).

Almost surely, 2^90133023 is an apocalyptic number.

90133023 is a deficient number, since it is larger than the sum of its proper divisors (32364897).

90133023 is a wasteful number, since it uses less digits than its factorization.

90133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 90133023 is about 9493.8413195081. The cubic root of 90133023 is about 448.3611548204.

The spelling of 90133023 in words is "ninety million, one hundred thirty-three thousand, twenty-three".