12973131 has 6 divisors (see below), whose sum is σ = 18738980. Its totient is φ = 8648748.

The previous prime is 12973117. The next prime is 12973133. The reversal of 12973131 is 13137921.

It is not a de Polignac number, because 12973131 - 2⁵ = 12973099 is a prime.

It is a super-2 number, since 2×12973131² = 336604255886322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12973095 and 12973104.

It is not an unprimeable number, because it can be changed into a prime (12973133) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 720721 + ... + 720738.

Almost surely, 2^12973131 is an apocalyptic number.

12973131 is a deficient number, since it is larger than the sum of its proper divisors (5765849).

12973131 is a wasteful number, since it uses less digits than its factorization.

12973131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441465 (or 1441462 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 12973131 is about 3601.8232882805. The cubic root of 12973131 is about 234.9713621357.

The spelling of 12973131 in words is "twelve million, nine hundred seventy-three thousand, one hundred thirty-one".