315400859 has 2 divisors, whose sum is σ = 315400860. Its totient is φ = 315400858.

The previous prime is 315400849. The next prime is 315400861. The reversal of 315400859 is 958004513.

It is a strong prime.

It is an emirp because it is prime and its reverse (958004513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315400859 - 2¹⁶ = 315335323 is a prime.

It is a Sophie Germain prime.

Together with 315400861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315400849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157700429 + 157700430.

It is an arithmetic number, because the mean of its divisors is an integer number (157700430).

Almost surely, 2^315400859 is an apocalyptic number.

315400859 is a deficient number, since it is larger than the sum of its proper divisors (1).

315400859 is an equidigital number, since it uses as much as digits as its factorization.

315400859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 315400859 is about 17759.5286818091. The cubic root of 315400859 is about 680.6977116387.

The spelling of 315400859 in words is "three hundred fifteen million, four hundred thousand, eight hundred fifty-nine".