31343252 has 12 divisors (see below), whose sum is σ = 55093920. Its totient is φ = 15602136.

The previous prime is 31343251. The next prime is 31343261. The reversal of 31343252 is 25234313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16352 + ... + 18167.

It is an arithmetic number, because the mean of its divisors is an integer number (4591160).

Almost surely, 2^31343252 is an apocalyptic number.

It is an amenable number.

31343252 is a deficient number, since it is larger than the sum of its proper divisors (23750668).

31343252 is a wasteful number, since it uses less digits than its factorization.

31343252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34750 (or 34748 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 31343252 is about 5598.5044431527. The cubic root of 31343252 is about 315.2932584339.

Adding to 31343252 its reverse (25234313), we get a palindrome (56577565).

The spelling of 31343252 in words is "thirty-one million, three hundred forty-three thousand, two hundred fifty-two".