315323125 has 30 divisors (see below), whose sum is σ = 426502538. Its totient is φ = 231672000.

The previous prime is 315323117. The next prime is 315323131. The reversal of 315323125 is 521323513.

It can be written as a sum of positive squares in 15 ways, for example, as 227376241 + 87946884 = 15079^2 + 9378^2 .

It is not a de Polignac number, because 315323125 - 2³ = 315323117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 315323125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1600527 + ... + 1600723.

Almost surely, 2^315323125 is an apocalyptic number.

It is an amenable number.

315323125 is a deficient number, since it is larger than the sum of its proper divisors (111179413).

315323125 is an frugal number, since it uses more digits than its factorization.

315323125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 215 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 315323125 is about 17757.3400316601. The cubic root of 315323125 is about 680.6417852390.

Adding to 315323125 its reverse (521323513), we get a palindrome (836646638).

The spelling of 315323125 in words is "three hundred fifteen million, three hundred twenty-three thousand, one hundred twenty-five".