315302539 has 2 divisors, whose sum is σ = 315302540. Its totient is φ = 315302538.

The previous prime is 315302521. The next prime is 315302569. The reversal of 315302539 is 935203513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315302539 - 2⁷ = 315302411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315302539.

It is not a weakly prime, because it can be changed into another prime (315302569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157651269 + 157651270.

It is an arithmetic number, because the mean of its divisors is an integer number (157651270).

Almost surely, 2^315302539 is an apocalyptic number.

315302539 is a deficient number, since it is larger than the sum of its proper divisors (1).

315302539 is an equidigital number, since it uses as much as digits as its factorization.

315302539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 315302539 is about 17756.7603745728. The cubic root of 315302539 is about 680.6269729236.

The spelling of 315302539 in words is "three hundred fifteen million, three hundred two thousand, five hundred thirty-nine".