315725685 has 16 divisors (see below), whose sum is σ = 551085120. Its totient is φ = 153079040.

The previous prime is 315725677. The next prime is 315725693. The reversal of 315725685 is 586527513.

It is an interprime number because it is at equal distance from previous prime (315725677) and next prime (315725693).

It is not a de Polignac number, because 315725685 - 2³ = 315725677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956580 + ... + 956909.

It is an arithmetic number, because the mean of its divisors is an integer number (34442820).

Almost surely, 2^315725685 is an apocalyptic number.

It is an amenable number.

315725685 is a deficient number, since it is larger than the sum of its proper divisors (235359435).

315725685 is a wasteful number, since it uses less digits than its factorization.

315725685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913508.

The product of its digits is 252000, while the sum is 42.

The square root of 315725685 is about 17768.6714472411. The cubic root of 315725685 is about 680.9313111431.

It can be divided in two parts, 315725 and 685, that added together give a triangular number (316410 = T₇₉₅).

The spelling of 315725685 in words is "three hundred fifteen million, seven hundred twenty-five thousand, six hundred eighty-five".