315400851 has 16 divisors (see below), whose sum is σ = 482334720. Its totient is φ = 203483880.

The previous prime is 315400849. The next prime is 315400859. The reversal of 315400851 is 158004513.

It is not a de Polignac number, because 315400851 - 2¹ = 315400849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (315400859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187575 + ... + 189248.

It is an arithmetic number, because the mean of its divisors is an integer number (30145920).

Almost surely, 2^315400851 is an apocalyptic number.

315400851 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

315400851 is a deficient number, since it is larger than the sum of its proper divisors (166933869).

315400851 is a wasteful number, since it uses less digits than its factorization.

315400851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376863 (or 376857 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 315400851 is about 17759.5284565779. The cubic root of 315400851 is about 680.6977058835.

The spelling of 315400851 in words is "three hundred fifteen million, four hundred thousand, eight hundred fifty-one".