315211252 has 12 divisors (see below), whose sum is σ = 552682116. Its totient is φ = 157302080.

The previous prime is 315211243. The next prime is 315211261. The reversal of 315211252 is 252112513.

It is an interprime number because it is at equal distance from previous prime (315211243) and next prime (315211261).

It can be written as a sum of positive squares in 2 ways, for example, as 186978276 + 128232976 = 13674^2 + 11324^2 .

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 3 ways as a sum of consecutive naturals, for example, 73543 + ... + 77710.

It is an arithmetic number, because the mean of its divisors is an integer number (46056843).

Almost surely, 2^315211252 is an apocalyptic number.

It is an amenable number.

315211252 is a deficient number, since it is larger than the sum of its proper divisors (237470864).

315211252 is a wasteful number, since it uses less digits than its factorization.

315211252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151778 (or 151776 counting only the distinct ones).

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

The square root of 315211252 is about 17754.1897027152. The cubic root of 315211252 is about 680.5612811049.

Adding to 315211252 its reverse (252112513), we get a palindrome (567323765).

The spelling of 315211252 in words is "three hundred fifteen million, two hundred eleven thousand, two hundred fifty-two".