31124252 has 12 divisors (see below), whose sum is σ = 55939800. Its totient is φ = 15141456.

The previous prime is 31124243. The next prime is 31124273. The reversal of 31124252 is 25242113.

It is a congruent number.

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, 105002 + ... + 105297.

It is an arithmetic number, because the mean of its divisors is an integer number (4661650).

Almost surely, 2^31124252 is an apocalyptic number.

It is an amenable number.

31124252 is a deficient number, since it is larger than the sum of its proper divisors (24815548).

31124252 is a wasteful number, since it uses less digits than its factorization.

31124252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210340 (or 210338 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 31124252 is about 5578.9113633396. The cubic root of 31124252 is about 314.5572077110.

Adding to 31124252 its reverse (25242113), we get a palindrome (56366365).

The spelling of 31124252 in words is "thirty-one million, one hundred twenty-four thousand, two hundred fifty-two".