90031132 has 24 divisors (see below), whose sum is σ = 162598464. Its totient is φ = 43594752.

The previous prime is 90031129. The next prime is 90031141. The reversal of 90031132 is 23113009.

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 7 ways as a sum of consecutive naturals, for example, 15768 + ... + 20704.

It is an arithmetic number, because the mean of its divisors is an integer number (6774936).

Almost surely, 2^90031132 is an apocalyptic number.

It is an amenable number.

90031132 is a deficient number, since it is larger than the sum of its proper divisors (72567332).

90031132 is a wasteful number, since it uses less digits than its factorization.

90031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085 (or 5083 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 90031132 is about 9488.4736391055. The cubic root of 90031132 is about 448.1921409554.

The spelling of 90031132 in words is "ninety million, thirty-one thousand, one hundred thirty-two".