79956131 has 2 divisors, whose sum is σ = 79956132. Its totient is φ = 79956130.

The previous prime is 79956127. The next prime is 79956143. The reversal of 79956131 is 13165997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79956131 - 2² = 79956127 is a prime.

It is a super-2 number, since 2×79956131² = 12785965768978322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79956101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39978065 + 39978066.

It is an arithmetic number, because the mean of its divisors is an integer number (39978066).

Almost surely, 2^79956131 is an apocalyptic number.

79956131 is a deficient number, since it is larger than the sum of its proper divisors (1).

79956131 is an equidigital number, since it uses as much as digits as its factorization.

79956131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 41.

The square root of 79956131 is about 8941.8192220599. The cubic root of 79956131 is about 430.8081628593.

The spelling of 79956131 in words is "seventy-nine million, nine hundred fifty-six thousand, one hundred thirty-one".