315025 has 6 divisors (see below), whose sum is σ = 390662. Its totient is φ = 252000.

The previous prime is 315013. The next prime is 315037. The reversal of 315025 is 520513.

It is an interprime number because it is at equal distance from previous prime (315013) and next prime (315037).

It can be written as a sum of positive squares in 3 ways, for example, as 9216 + 305809 = 96^2 + 553^2 .

It is not a de Polignac number, because 315025 - 2⁹ = 314513 is a prime.

It is a Duffinian number.

315025 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6276 + ... + 6325.

2³¹⁵⁰²⁵ is an apocalyptic number.

It is an amenable number.

315025 is a deficient number, since it is larger than the sum of its proper divisors (75637).

315025 is a wasteful number, since it uses less digits than its factorization.

315025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12611 (or 12606 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 315025 is about 561.2708793444. The cubic root of 315025 is about 68.0427211363.

Adding to 315025 its reverse (520513), we get a palindrome (835538).

The spelling of 315025 in words is "three hundred fifteen thousand, twenty-five".