31532132 has 6 divisors (see below), whose sum is σ = 55181238. Its totient is φ = 15766064.

The previous prime is 31532117. The next prime is 31532141. The reversal of 31532132 is 23123513.

It can be written as a sum of positive squares in only one way, i.e., 23658496 + 7873636 = 4864^2 + 2806^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941513 + ... + 3941520.

It is an arithmetic number, because the mean of its divisors is an integer number (9196873).

Almost surely, 2^31532132 is an apocalyptic number.

It is an amenable number.

31532132 is a deficient number, since it is larger than the sum of its proper divisors (23649106).

31532132 is a wasteful number, since it uses less digits than its factorization.

31532132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883037 (or 7883035 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 31532132 is about 5615.3478966134. The cubic root of 31532132 is about 315.9253281875.

Adding to 31532132 its reverse (23123513), we get a palindrome (54655645).

The spelling of 31532132 in words is "thirty-one million, five hundred thirty-two thousand, one hundred thirty-two".