31607012 has 12 divisors (see below), whose sum is σ = 58566060. Its totient is φ = 14873856.

The previous prime is 31606997. The next prime is 31607039. The reversal of 31607012 is 21070613.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26481316 + 5125696 = 5146^2 + 2264^2 .

It is an unprimeable number.

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, 232337 + ... + 232472.

It is an arithmetic number, because the mean of its divisors is an integer number (4880505).

Almost surely, 2^31607012 is an apocalyptic number.

It is an amenable number.

31607012 is a deficient number, since it is larger than the sum of its proper divisors (26959048).

31607012 is a wasteful number, since it uses less digits than its factorization.

31607012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464830 (or 464828 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 31607012 is about 5622.0113838376. The cubic root of 31607012 is about 316.1752086099.

Adding to 31607012 its reverse (21070613), we get a palindrome (52677625).

The spelling of 31607012 in words is "thirty-one million, six hundred seven thousand, twelve".