315663 has 8 divisors (see below), whose sum is σ = 430848. Its totient is φ = 205464.

The previous prime is 315643. The next prime is 315671. The reversal of 315663 is 366513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315663 - 2⁵ = 315631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (53856).

2³¹⁵⁶⁶³ is an apocalyptic number.

315663 is a deficient number, since it is larger than the sum of its proper divisors (115185).

315663 is a wasteful number, since it uses less digits than its factorization.

315663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493.

The product of its digits is 1620, while the sum is 24.

The square root of 315663 is about 561.8389448944. The cubic root of 315663 is about 68.0886243535.

The spelling of 315663 in words is "three hundred fifteen thousand, six hundred sixty-three".