31324252 has 12 divisors (see below), whose sum is σ = 57200976. Its totient is φ = 14981120.

The previous prime is 31324201. The next prime is 31324259. The reversal of 31324252 is 25242313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324259) 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, 170149 + ... + 170332.

It is an arithmetic number, because the mean of its divisors is an integer number (4766748).

Almost surely, 2^31324252 is an apocalyptic number.

It is an amenable number.

31324252 is a deficient number, since it is larger than the sum of its proper divisors (25876724).

31324252 is a wasteful number, since it uses less digits than its factorization.

31324252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340508 (or 340506 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 31324252 is about 5596.8073041690. The cubic root of 31324252 is about 315.2295362352.

Adding to 31324252 its reverse (25242313), we get a palindrome (56566565).

The spelling of 31324252 in words is "thirty-one million, three hundred twenty-four thousand, two hundred fifty-two".