315297547 has 4 divisors (see below), whose sum is σ = 329006160. Its totient is φ = 301588936.

The previous prime is 315297529. The next prime is 315297557. The reversal of 315297547 is 745792513.

315297547 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315297547 - 2²⁷ = 181079819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315297527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6854272 + ... + 6854317.

It is an arithmetic number, because the mean of its divisors is an integer number (82251540).

Almost surely, 2^315297547 is an apocalyptic number.

315297547 is a deficient number, since it is larger than the sum of its proper divisors (13708613).

315297547 is a wasteful number, since it uses less digits than its factorization.

315297547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13708612.

The product of its digits is 264600, while the sum is 43.

The square root of 315297547 is about 17756.6198078350. The cubic root of 315297547 is about 680.6233809156.

It can be divided in two parts, 315297 and 547, that added together give a square (315844 = 562²).

The spelling of 315297547 in words is "three hundred fifteen million, two hundred ninety-seven thousand, five hundred forty-seven".