315320 has 16 divisors (see below), whose sum is σ = 709560. Its totient is φ = 126112.

The previous prime is 315313. The next prime is 315349. The reversal of 315320 is 23513.

It is a junction number, because it is equal to n+sod(n) for n = 315295 and 315304.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 3902 + ... + 3981.

2³¹⁵³²⁰ is an apocalyptic number.

It is an amenable number.

315320 is an abundant number, since it is smaller than the sum of its proper divisors (394240).

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

315320 is a wasteful number, since it uses less digits than its factorization.

315320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894 (or 7890 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 315320 is about 561.5336143100. The cubic root of 315320 is about 68.0639536739.

Adding to 315320 its reverse (23513), we get a palindrome (338833).

The spelling of 315320 in words is "three hundred fifteen thousand, three hundred twenty".