31164576136 has 32 divisors (see below), whose sum is σ = 59776577280. Its totient is φ = 15225264000.

The previous prime is 31164576097. The next prime is 31164576139. The reversal of 31164576136 is 63167546113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31164576092 and 31164576101.

It is not an unprimeable number, because it can be changed into a prime (31164576139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157021 + ... + 294931.

It is an arithmetic number, because the mean of its divisors is an integer number (1868018040).

Almost surely, 2^31164576136 is an apocalyptic number.

It is an amenable number.

31164576136 is a deficient number, since it is larger than the sum of its proper divisors (28612001144).

31164576136 is a wasteful number, since it uses less digits than its factorization.

31164576136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138565 (or 138561 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The spelling of 31164576136 in words is "thirty-one billion, one hundred sixty-four million, five hundred seventy-six thousand, one hundred thirty-six".