31252012 has 12 divisors (see below), whose sum is σ = 59663016. Its totient is φ = 14205440.

The previous prime is 31252007. The next prime is 31252043. The reversal of 31252012 is 21025213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355093 + ... + 355180.

It is an arithmetic number, because the mean of its divisors is an integer number (4971918).

Almost surely, 2^31252012 is an apocalyptic number.

It is an amenable number.

31252012 is a deficient number, since it is larger than the sum of its proper divisors (28411004).

31252012 is a wasteful number, since it uses less digits than its factorization.

31252012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710288 (or 710286 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 31252012 is about 5590.3498996038. The cubic root of 31252012 is about 314.9870222251.

Adding to 31252012 its reverse (21025213), we get a palindrome (52277225).

The spelling of 31252012 in words is "thirty-one million, two hundred fifty-two thousand, twelve".