315365 has 4 divisors (see below), whose sum is σ = 378444. Its totient is φ = 252288.

The previous prime is 315361. The next prime is 315373. The reversal of 315365 is 563513.

315365 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563513 = 103 ⋅5471.

It can be written as a sum of positive squares in 2 ways, for example, as 37636 + 277729 = 194^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 315365 - 2² = 315361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315365.

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 315365.

It is not an unprimeable number, because it can be changed into a prime (315361) 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, 31532 + ... + 31541.

It is an arithmetic number, because the mean of its divisors is an integer number (94611).

2³¹⁵³⁶⁵ is an apocalyptic number.

It is an amenable number.

315365 is a deficient number, since it is larger than the sum of its proper divisors (63079).

315365 is an equidigital number, since it uses as much as digits as its factorization.

315365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63078.

The product of its digits is 1350, while the sum is 23.

The square root of 315365 is about 561.5736817195. The cubic root of 315365 is about 68.0671913712.

Adding to 315365 its reverse (563513), we get a palindrome (878878).

The spelling of 315365 in words is "three hundred fifteen thousand, three hundred sixty-five".