315506 has 8 divisors (see below), whose sum is σ = 479964. Its totient is φ = 155520.

The previous prime is 315493. The next prime is 315517. The reversal of 315506 is 605513.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 3025 = 559^2 + 55^2 .

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

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935 + ... + 1226.

2³¹⁵⁵⁰⁶ is an apocalyptic number.

315506 is a deficient number, since it is larger than the sum of its proper divisors (164458).

315506 is a wasteful number, since it uses less digits than its factorization.

315506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 315506 is about 561.6992077616. The cubic root of 315506 is about 68.0773341624.

The spelling of 315506 in words is "three hundred fifteen thousand, five hundred six".