313663513 has 2 divisors, whose sum is σ = 313663514. Its totient is φ = 313663512.

The previous prime is 313663459. The next prime is 313663579. The reversal of 313663513 is 315366313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298702089 + 14961424 = 17283^2 + 3868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313663513 is a prime.

It is not a weakly prime, because it can be changed into another prime (313663313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156831756 + 156831757.

It is an arithmetic number, because the mean of its divisors is an integer number (156831757).

Almost surely, 2^313663513 is an apocalyptic number.

It is an amenable number.

313663513 is a deficient number, since it is larger than the sum of its proper divisors (1).

313663513 is an equidigital number, since it uses as much as digits as its factorization.

313663513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 31.

The square root of 313663513 is about 17710.5480717001. The cubic root of 313663513 is about 679.4455637799.

The spelling of 313663513 in words is "three hundred thirteen million, six hundred sixty-three thousand, five hundred thirteen".