316129977 has 12 divisors (see below), whose sum is σ = 483493140. Its totient is φ = 198355968.

The previous prime is 316129939. The next prime is 316129981. The reversal of 316129977 is 779921613.

It can be written as a sum of positive squares in 2 ways, for example, as 134931456 + 181198521 = 11616^2 + 13461^2 .

It is not a de Polignac number, because 316129977 - 2¹² = 316125881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316129987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032952 + ... + 1033257.

It is an arithmetic number, because the mean of its divisors is an integer number (40291095).

Almost surely, 2^316129977 is an apocalyptic number.

It is an amenable number.

316129977 is a deficient number, since it is larger than the sum of its proper divisors (167363163).

316129977 is a wasteful number, since it uses less digits than its factorization.

316129977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066232 (or 2066229 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 316129977 is about 17780.0443475262. The cubic root of 316129977 is about 681.2218351345.

The spelling of 316129977 in words is "three hundred sixteen million, one hundred twenty-nine thousand, nine hundred seventy-seven".