315039989 has 16 divisors (see below), whose sum is σ = 347469696. Its totient is φ = 283262400.

The previous prime is 315039943. The next prime is 315039997. The reversal of 315039989 is 989930513.

It is a cyclic number.

It is not a de Polignac number, because 315039989 - 2²⁸ = 46604533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315039689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582059 + ... + 582599.

It is an arithmetic number, because the mean of its divisors is an integer number (21716856).

Almost surely, 2^315039989 is an apocalyptic number.

It is an amenable number.

315039989 is a deficient number, since it is larger than the sum of its proper divisors (32429707).

315039989 is a wasteful number, since it uses less digits than its factorization.

315039989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 315039989 is about 17749.3658759968. The cubic root of 315039989 is about 680.4380028468.

The spelling of 315039989 in words is "three hundred fifteen million, thirty-nine thousand, nine hundred eighty-nine".