31116452 has 24 divisors (see below), whose sum is σ = 57523200. Its totient is φ = 14687136.

The previous prime is 31116439. The next prime is 31116461. The reversal of 31116452 is 25461113.

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 7 ways as a sum of consecutive naturals, for example, 28574 + ... + 29642.

It is an arithmetic number, because the mean of its divisors is an integer number (2396800).

Almost surely, 2^31116452 is an apocalyptic number.

It is an amenable number.

31116452 is a deficient number, since it is larger than the sum of its proper divisors (26406748).

31116452 is a wasteful number, since it uses less digits than its factorization.

31116452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1473 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 31116452 is about 5578.2122584212. The cubic root of 31116452 is about 314.5309286194.

Adding to 31116452 its reverse (25461113), we get a palindrome (56577565).

The spelling of 31116452 in words is "thirty-one million, one hundred sixteen thousand, four hundred fifty-two".