315020297 has 6 divisors (see below), whose sum is σ = 316133514. Its totient is φ = 313910960.

The previous prime is 315020291. The next prime is 315020309. The reversal of 315020297 is 792020513.

It can be written as a sum of positive squares in only one way, i.e., 303317056 + 11703241 = 17416^2 + 3421^2 .

It is a de Polignac number, because none of the positive numbers 2^k-315020297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315020291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95093 + ... + 98349.

It is an arithmetic number, because the mean of its divisors is an integer number (52688919).

Almost surely, 2^315020297 is an apocalyptic number.

It is an amenable number.

315020297 is a deficient number, since it is larger than the sum of its proper divisors (1113217).

315020297 is an frugal number, since it uses more digits than its factorization.

315020297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 315020297 is about 17748.8111432851. The cubic root of 315020297 is about 680.4238253193.

The spelling of 315020297 in words is "three hundred fifteen million, twenty thousand, two hundred ninety-seven".