315217377 has 6 divisors (see below), whose sum is σ = 455314002. Its totient is φ = 210144912.

The previous prime is 315217361. The next prime is 315217381. The reversal of 315217377 is 773712513.

It can be written as a sum of positive squares in only one way, i.e., 186076881 + 129140496 = 13641^2 + 11364^2 .

It is not a de Polignac number, because 315217377 - 2⁴ = 315217361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315213377) 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, 17512068 + ... + 17512085.

It is an arithmetic number, because the mean of its divisors is an integer number (75885667).

Almost surely, 2^315217377 is an apocalyptic number.

It is an amenable number.

315217377 is a deficient number, since it is larger than the sum of its proper divisors (140096625).

315217377 is a wasteful number, since it uses less digits than its factorization.

315217377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35024159 (or 35024156 counting only the distinct ones).

The product of its digits is 30870, while the sum is 36.

The square root of 315217377 is about 17754.3621963730. The cubic root of 315217377 is about 680.5656891655.

The spelling of 315217377 in words is "three hundred fifteen million, two hundred seventeen thousand, three hundred seventy-seven".