31032132 has 12 divisors (see below), whose sum is σ = 72408336. Its totient is φ = 10344040.

The previous prime is 31032097. The next prime is 31032139. The reversal of 31032132 is 23123013.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31032139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292994 + ... + 1293017.

It is an arithmetic number, because the mean of its divisors is an integer number (6034028).

Almost surely, 2^31032132 is an apocalyptic number.

It is an amenable number.

31032132 is an abundant number, since it is smaller than the sum of its proper divisors (41376204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31032132 is a wasteful number, since it uses less digits than its factorization.

31032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586018 (or 2586016 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 31032132 is about 5570.6491542728. The cubic root of 31032132 is about 314.2465641513.

Adding to 31032132 its reverse (23123013), we get a palindrome (54155145).

The spelling of 31032132 in words is "thirty-one million, thirty-two thousand, one hundred thirty-two".