315023539 has 2 divisors, whose sum is σ = 315023540. Its totient is φ = 315023538.

The previous prime is 315023531. The next prime is 315023551. The reversal of 315023539 is 935320513.

It is a weak prime.

It is an emirp because it is prime and its reverse (935320513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315023539 - 2³ = 315023531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315023539.

It is not a weakly prime, because it can be changed into another prime (315023531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157511769 + 157511770.

It is an arithmetic number, because the mean of its divisors is an integer number (157511770).

Almost surely, 2^315023539 is an apocalyptic number.

315023539 is a deficient number, since it is larger than the sum of its proper divisors (1).

315023539 is an equidigital number, since it uses as much as digits as its factorization.

315023539 is an evil number, because the sum of its binary digits is even.

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

The square root of 315023539 is about 17748.9024731108. The cubic root of 315023539 is about 680.4261594826.

The spelling of 315023539 in words is "three hundred fifteen million, twenty-three thousand, five hundred thirty-nine".