315897249 has 16 divisors (see below), whose sum is σ = 462643200. Its totient is φ = 190838736.

The previous prime is 315897233. The next prime is 315897271. The reversal of 315897249 is 942798513.

It is not a de Polignac number, because 315897249 - 2⁴ = 315897233 is a prime.

It is a super-3 number, since 3×315897249³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315897198 and 315897207.

It is not an unprimeable number, because it can be changed into a prime (315897209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119169 + ... + 121790.

It is an arithmetic number, because the mean of its divisors is an integer number (28915200).

Almost surely, 2^315897249 is an apocalyptic number.

It is an amenable number.

315897249 is a deficient number, since it is larger than the sum of its proper divisors (146745951).

315897249 is a wasteful number, since it uses less digits than its factorization.

315897249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241004.

The product of its digits is 544320, while the sum is 48.

The square root of 315897249 is about 17773.4985019832. The cubic root of 315897249 is about 681.0546272062.

The spelling of 315897249 in words is "three hundred fifteen million, eight hundred ninety-seven thousand, two hundred forty-nine".