315812317 has 16 divisors (see below), whose sum is σ = 329771520. Its totient is φ = 302239872.

The previous prime is 315812303. The next prime is 315812359. The reversal of 315812317 is 713218513.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315812317 is a prime.

It is a Duffinian number.

315812317 is a Rhonda number in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315812017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430483 + ... + 431215.

It is an arithmetic number, because the mean of its divisors is an integer number (20610720).

Almost surely, 2^315812317 is an apocalyptic number.

It is an amenable number.

315812317 is a deficient number, since it is larger than the sum of its proper divisors (13959203).

315812317 is a wasteful number, since it uses less digits than its factorization.

315812317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its digits is 5040, while the sum is 31.

The square root of 315812317 is about 17771.1090537423. The cubic root of 315812317 is about 680.9935857162.

The spelling of 315812317 in words is "three hundred fifteen million, eight hundred twelve thousand, three hundred seventeen".