315318863 has 2 divisors, whose sum is σ = 315318864. Its totient is φ = 315318862.

The previous prime is 315318803. The next prime is 315318893. The reversal of 315318863 is 368813513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315318863 - 2⁸ = 315318607 is a prime.

It is a super-2 number, since 2×315318863² = 198851970727225538, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315318803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157659431 + 157659432.

It is an arithmetic number, because the mean of its divisors is an integer number (157659432).

Almost surely, 2^315318863 is an apocalyptic number.

315318863 is a deficient number, since it is larger than the sum of its proper divisors (1).

315318863 is an equidigital number, since it uses as much as digits as its factorization.

315318863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 315318863 is about 17757.2200245421. The cubic root of 315318863 is about 680.6387186404.

The spelling of 315318863 in words is "three hundred fifteen million, three hundred eighteen thousand, eight hundred sixty-three".