31145453164 has 12 divisors (see below), whose sum is σ = 62290906384. Its totient is φ = 13348051344.

The previous prime is 31145453153. The next prime is 31145453173. The reversal of 31145453164 is 46135454113.

31145453164 is an admirable number.

It is a super-2 number, since 2×31145453164² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 556168779 + ... + 556168834.

Almost surely, 2^31145453164 is an apocalyptic number.

It is an amenable number.

31145453164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31145453164 is a wasteful number, since it uses less digits than its factorization.

31145453164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112337624 (or 1112337622 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 31145453164 in words is "thirty-one billion, one hundred forty-five million, four hundred fifty-three thousand, one hundred sixty-four".