313376681 has 2 divisors, whose sum is σ = 313376682. Its totient is φ = 313376680.

The previous prime is 313376627. The next prime is 313376689. The reversal of 313376681 is 186673313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187936681 + 125440000 = 13709^2 + 11200^2 .

It is a cyclic number.

It is not a de Polignac number, because 313376681 - 2¹⁴ = 313360297 is a prime.

It is a super-2 number, since 2×313376681² = 196409888389151522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313376689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156688340 + 156688341.

It is an arithmetic number, because the mean of its divisors is an integer number (156688341).

Almost surely, 2^313376681 is an apocalyptic number.

It is an amenable number.

313376681 is a deficient number, since it is larger than the sum of its proper divisors (1).

313376681 is an equidigital number, since it uses as much as digits as its factorization.

313376681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 313376681 is about 17702.4484464720. The cubic root of 313376681 is about 679.2383925520.

The spelling of 313376681 in words is "three hundred thirteen million, three hundred seventy-six thousand, six hundred eighty-one".