315416831 has 2 divisors, whose sum is σ = 315416832. Its totient is φ = 315416830.

The previous prime is 315416807. The next prime is 315416863. The reversal of 315416831 is 138614513.

It is an a-pointer prime, because the next prime (315416863) can be obtained adding 315416831 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (138614513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315416831 - 2⁶ = 315416767 is a prime.

It is a super-2 number, since 2×315416831² = 198975554556165122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315416531) 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 as a sum of consecutive naturals, namely, 157708415 + 157708416.

It is an arithmetic number, because the mean of its divisors is an integer number (157708416).

Almost surely, 2^315416831 is an apocalyptic number.

315416831 is a deficient number, since it is larger than the sum of its proper divisors (1).

315416831 is an equidigital number, since it uses as much as digits as its factorization.

315416831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 315416831 is about 17759.9783502120. The cubic root of 315416831 is about 680.7092016944.

The spelling of 315416831 in words is "three hundred fifteen million, four hundred sixteen thousand, eight hundred thirty-one".