315165 has 8 divisors (see below), whose sum is σ = 504288. Its totient is φ = 168080.

The previous prime is 315127. The next prime is 315179. The reversal of 315165 is 561513.

It is a happy number.

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

It is not a de Polignac number, because 315165 - 2⁷ = 315037 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315165.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10491 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (63036).

2³¹⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

315165 is a deficient number, since it is larger than the sum of its proper divisors (189123).

315165 is a wasteful number, since it uses less digits than its factorization.

315165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21019.

The product of its digits is 450, while the sum is 21.

The square root of 315165 is about 561.3955824550. The cubic root of 315165 is about 68.0527992467.

Adding to 315165 its product of digits (450), we get a triangular number (315615 = T₇₉₄).

Adding to 315165 its reverse (561513), we get a palindrome (876678).

The spelling of 315165 in words is "three hundred fifteen thousand, one hundred sixty-five".