31345252 has 12 divisors (see below), whose sum is σ = 54920320. Its totient is φ = 15653736.

The previous prime is 31345241. The next prime is 31345271. The reversal of 31345252 is 25254313.

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 in 3 ways as a sum of consecutive naturals, for example, 588 + ... + 7939.

Almost surely, 2^31345252 is an apocalyptic number.

It is an amenable number.

31345252 is a deficient number, since it is larger than the sum of its proper divisors (23575068).

31345252 is a wasteful number, since it uses less digits than its factorization.

31345252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450 (or 9448 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 31345252 is about 5598.6830594346. The cubic root of 31345252 is about 315.2999645355.

Adding to 31345252 its reverse (25254313), we get a palindrome (56599565).

The spelling of 31345252 in words is "thirty-one million, three hundred forty-five thousand, two hundred fifty-two".