315125252 has 48 divisors (see below), whose sum is σ = 620751600. Its totient is φ = 138969600.

The previous prime is 315125201. The next prime is 315125269. The reversal of 315125252 is 252521513.

It can be written as a sum of positive squares in 8 ways, for example, as 1976836 + 313148416 = 1406^2 + 17696^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 151274 + ... + 153342.

It is an arithmetic number, because the mean of its divisors is an integer number (12932325).

Almost surely, 2^315125252 is an apocalyptic number.

It is an amenable number.

315125252 is a deficient number, since it is larger than the sum of its proper divisors (305626348).

315125252 is a wasteful number, since it uses less digits than its factorization.

315125252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 315125252 is about 17751.7675739629. The cubic root of 315125252 is about 680.4993823059.

Adding to 315125252 its reverse (252521513), we get a palindrome (567646765).

The spelling of 315125252 in words is "three hundred fifteen million, one hundred twenty-five thousand, two hundred fifty-two".