315539489 has 4 divisors (see below), whose sum is σ = 315738180. Its totient is φ = 315340800.

The previous prime is 315539447. The next prime is 315539491. The reversal of 315539489 is 984935513.

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

It can be written as a sum of positive squares in 2 ways, for example, as 260661025 + 54878464 = 16145^2 + 7408^2 .

It is a cyclic number.

It is not a de Polignac number, because 315539489 - 2⁸ = 315539233 is a prime.

It is a super-2 number, since 2×315539489² = 199130338236762242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315539429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96944 + ... + 100145.

It is an arithmetic number, because the mean of its divisors is an integer number (78934545).

Almost surely, 2^315539489 is an apocalyptic number.

It is an amenable number.

315539489 is a deficient number, since it is larger than the sum of its proper divisors (198691).

315539489 is a wasteful number, since it uses less digits than its factorization.

315539489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198690.

The product of its digits is 583200, while the sum is 47.

The square root of 315539489 is about 17763.4312282284. The cubic root of 315539489 is about 680.7974273907.

The spelling of 315539489 in words is "three hundred fifteen million, five hundred thirty-nine thousand, four hundred eighty-nine".