315228 has 24 divisors (see below), whose sum is σ = 745360. Its totient is φ = 103680.

The previous prime is 315223. The next prime is 315247. The reversal of 315228 is 822513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315223) by changing a digit.

315228 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 1188 + ... + 1428.

2³¹⁵²²⁸ is an apocalyptic number.

It is an amenable number.

315228 is an abundant number, since it is smaller than the sum of its proper divisors (430132).

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

315228 is a wasteful number, since it uses less digits than its factorization.

315228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 315228 is about 561.4516898185. The cubic root of 315228 is about 68.0573334226.

The spelling of 315228 in words is "three hundred fifteen thousand, two hundred twenty-eight".