315198247 has 16 divisors (see below), whose sum is σ = 388413760. Its totient is φ = 249080832.

The previous prime is 315198223. The next prime is 315198251. The reversal of 315198247 is 742891513.

It is not a de Polignac number, because 315198247 - 2¹¹ = 315196199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315198047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97879 + ... + 101047.

It is an arithmetic number, because the mean of its divisors is an integer number (24275860).

Almost surely, 2^315198247 is an apocalyptic number.

315198247 is a deficient number, since it is larger than the sum of its proper divisors (73215513).

315198247 is a wasteful number, since it uses less digits than its factorization.

315198247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its digits is 60480, while the sum is 40.

The square root of 315198247 is about 17753.8234473592. The cubic root of 315198247 is about 680.5519214336.

The spelling of 315198247 in words is "three hundred fifteen million, one hundred ninety-eight thousand, two hundred forty-seven".