315089 has 4 divisors (see below), whose sum is σ = 316224. Its totient is φ = 313956.

The previous prime is 315083. The next prime is 315097. The reversal of 315089 is 980513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (79056).

2³¹⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

315089 is a deficient number, since it is larger than the sum of its proper divisors (1135).

315089 is an equidigital number, since it uses as much as digits as its factorization.

315089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 315089 is about 561.3278899182. The cubic root of 315089 is about 68.0473286429.

The spelling of 315089 in words is "three hundred fifteen thousand, eighty-nine".