315244215 has 48 divisors (see below), whose sum is σ = 641964960. Its totient is φ = 141085440.

The previous prime is 315244213. The next prime is 315244229. The reversal of 315244215 is 512442513.

It is not a de Polignac number, because 315244215 - 2¹ = 315244213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315244211) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 18060 + ... + 30929.

It is an arithmetic number, because the mean of its divisors is an integer number (13374270).

Almost surely, 2^315244215 is an apocalyptic number.

315244215 is an abundant number, since it is smaller than the sum of its proper divisors (326720745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315244215 is a wasteful number, since it uses less digits than its factorization.

315244215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49024 (or 49021 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 315244215 is about 17755.1179945389. The cubic root of 315244215 is about 680.5850033541.

Adding to 315244215 its reverse (512442513), we get a palindrome (827686728).

The spelling of 315244215 in words is "three hundred fifteen million, two hundred forty-four thousand, two hundred fifteen".