315727513 has 2 divisors, whose sum is σ = 315727514. Its totient is φ = 315727512.

The previous prime is 315727507. The next prime is 315727523.

315727513 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296252944 + 19474569 = 17212^2 + 4413^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 315727513 - 2⁵ = 315727481 is a prime.

It is not a weakly prime, because it can be changed into another prime (315727523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157863756 + 157863757.

It is an arithmetic number, because the mean of its divisors is an integer number (157863757).

Almost surely, 2^315727513 is an apocalyptic number.

It is an amenable number.

315727513 is a deficient number, since it is larger than the sum of its proper divisors (1).

315727513 is an equidigital number, since it uses as much as digits as its factorization.

315727513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 34.

The square root of 315727513 is about 17768.7228860152. The cubic root of 315727513 is about 680.9326253008.

The spelling of 315727513 in words is "three hundred fifteen million, seven hundred twenty-seven thousand, five hundred thirteen".