315085 has 16 divisors (see below), whose sum is σ = 408240. Its totient is φ = 232960.

The previous prime is 315083. The next prime is 315097. The reversal of 315085 is 580513.

It can be written as a sum of positive squares in 8 ways, for example, as 15876 + 299209 = 126^2 + 547^2 .

It is not a de Polignac number, because 315085 - 2¹ = 315083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315083) 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 15 ways as a sum of consecutive naturals, for example, 5919 + ... + 5971.

It is an arithmetic number, because the mean of its divisors is an integer number (25515).

2³¹⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

315085 is a deficient number, since it is larger than the sum of its proper divisors (93155).

315085 is a wasteful number, since it uses less digits than its factorization.

315085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 315085 is about 561.3243269270. The cubic root of 315085 is about 68.0470406920.

Adding to 315085 its reverse (580513), we get a palindrome (895598).

It can be divided in two parts, 31508 and 5, that added together give a palindrome (31513).

The spelling of 315085 in words is "three hundred fifteen thousand, eighty-five".