313726013 has 2 divisors, whose sum is σ = 313726014. Its totient is φ = 313726012.

The previous prime is 313725977. The next prime is 313726019. The reversal of 313726013 is 310627313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306180004 + 7546009 = 17498^2 + 2747^2 .

It is a cyclic number.

It is not a de Polignac number, because 313726013 - 2⁸ = 313725757 is a prime.

It is a super-2 number, since 2×313726013² = 196848022465752338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313726019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156863006 + 156863007.

It is an arithmetic number, because the mean of its divisors is an integer number (156863007).

Almost surely, 2^313726013 is an apocalyptic number.

It is an amenable number.

313726013 is a deficient number, since it is larger than the sum of its proper divisors (1).

313726013 is an equidigital number, since it uses as much as digits as its factorization.

313726013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 313726013 is about 17712.3124690143. The cubic root of 313726013 is about 679.4906891300.

The spelling of 313726013 in words is "three hundred thirteen million, seven hundred twenty-six thousand, thirteen".