315534985 has 8 divisors (see below), whose sum is σ = 381993480. Its totient is φ = 250193664.

The previous prime is 315534983. The next prime is 315534991. The reversal of 315534985 is 589435513.

It can be written as a sum of positive squares in 4 ways, for example, as 10816 + 315524169 = 104^2 + 17763^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315534985 - 2¹ = 315534983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315534983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278670 + ... + 279799.

It is an arithmetic number, because the mean of its divisors is an integer number (47749185).

Almost surely, 2^315534985 is an apocalyptic number.

It is an amenable number.

315534985 is a deficient number, since it is larger than the sum of its proper divisors (66458495).

315534985 is a wasteful number, since it uses less digits than its factorization.

315534985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558587.

The product of its digits is 324000, while the sum is 43.

The square root of 315534985 is about 17763.3044504675. The cubic root of 315534985 is about 680.7941881488.

The spelling of 315534985 in words is "three hundred fifteen million, five hundred thirty-four thousand, nine hundred eighty-five".