977630131 has 2 divisors, whose sum is σ = 977630132. Its totient is φ = 977630130.

The previous prime is 977630119. The next prime is 977630179. The reversal of 977630131 is 131036779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 977630131 - 2⁵ = 977630099 is a prime.

It is a super-2 number, since 2×977630131² = 1911521346078154322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (971630131) by changing a digit.

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 as a sum of consecutive naturals, namely, 488815065 + 488815066.

It is an arithmetic number, because the mean of its divisors is an integer number (488815066).

Almost surely, 2^977630131 is an apocalyptic number.

977630131 is a deficient number, since it is larger than the sum of its proper divisors (1).

977630131 is an equidigital number, since it uses as much as digits as its factorization.

977630131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 977630131 is about 31267.0774297823. The cubic root of 977630131 is about 992.4870743008.

The spelling of 977630131 in words is "nine hundred seventy-seven million, six hundred thirty thousand, one hundred thirty-one".