315568 has 30 divisors (see below), whose sum is σ = 676172. Its totient is φ = 142560.

The previous prime is 315559. The next prime is 315569. The reversal of 315568 is 865513.

315568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (315569) by changing a digit.

315568 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 (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1855 + ... + 2017.

2³¹⁵⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338086).

315568 is an abundant number, since it is smaller than the sum of its proper divisors (360604).

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

315568 is a wasteful number, since it uses less digits than its factorization.

315568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 176 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 315568 is about 561.7543947314. The cubic root of 315568 is about 68.0817931566.

Subtracting 315568 from its reverse (865513), we obtain a palindrome (549945).

It can be divided in two parts, 3155 and 68, that added together give a palindrome (3223).

The spelling of 315568 in words is "three hundred fifteen thousand, five hundred sixty-eight".