315016257 has 16 divisors (see below), whose sum is σ = 461352960. Its totient is φ = 190306512.

The previous prime is 315016253. The next prime is 315016283. The reversal of 315016257 is 752610513.

It is not a de Polignac number, because 315016257 - 2² = 315016253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315016253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118833 + ... + 121454.

It is an arithmetic number, because the mean of its divisors is an integer number (28834560).

Almost surely, 2^315016257 is an apocalyptic number.

It is an amenable number.

315016257 is a deficient number, since it is larger than the sum of its proper divisors (146336703).

315016257 is a wasteful number, since it uses less digits than its factorization.

315016257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240332.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 315016257 is about 17748.6973324805. The cubic root of 315016257 is about 680.4209165924.

The spelling of 315016257 in words is "three hundred fifteen million, sixteen thousand, two hundred fifty-seven".