31612132 has 6 divisors (see below), whose sum is σ = 55321238. Its totient is φ = 15806064.

The previous prime is 31612121. The next prime is 31612151. The reversal of 31612132 is 23121613.

It can be written as a sum of positive squares in only one way, i.e., 25140196 + 6471936 = 5014^2 + 2544^2 .

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 as a sum of consecutive naturals, namely, 3951513 + ... + 3951520.

Almost surely, 2^31612132 is an apocalyptic number.

It is an amenable number.

31612132 is a deficient number, since it is larger than the sum of its proper divisors (23709106).

31612132 is a wasteful number, since it uses less digits than its factorization.

31612132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903037 (or 7903035 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 31612132 is about 5622.4667184431. The cubic root of 31612132 is about 316.1922800293.

Adding to 31612132 its reverse (23121613), we get a palindrome (54733745).

The spelling of 31612132 in words is "thirty-one million, six hundred twelve thousand, one hundred thirty-two".