31161052 has 12 divisors (see below), whose sum is σ = 58726696. Its totient is φ = 14382000.

The previous prime is 31161043. The next prime is 31161089. The reversal of 31161052 is 25016113.

It is a super-2 number, since 2×31161052² = 1942022323493408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299574 + ... + 299677.

Almost surely, 2^31161052 is an apocalyptic number.

It is an amenable number.

31161052 is a deficient number, since it is larger than the sum of its proper divisors (27565644).

31161052 is a wasteful number, since it uses less digits than its factorization.

31161052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599268 (or 599266 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 31161052 is about 5582.2085235147. The cubic root of 31161052 is about 314.6811319318.

Adding to 31161052 its reverse (25016113), we get a palindrome (56177165).

The spelling of 31161052 in words is "thirty-one million, one hundred sixty-one thousand, fifty-two".