315215 has 8 divisors (see below), whose sum is σ = 394848. Its totient is φ = 241120.

The previous prime is 315199. The next prime is 315223. The reversal of 315215 is 512513.

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

It is not a de Polignac number, because 315215 - 2⁴ = 315199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315193 and 315202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (49356).

2³¹⁵²¹⁵ is an apocalyptic number.

315215 is a deficient number, since it is larger than the sum of its proper divisors (79633).

315215 is a wasteful number, since it uses less digits than its factorization.

315215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769.

The product of its digits is 150, while the sum is 17.

The square root of 315215 is about 561.4401125677. The cubic root of 315215 is about 68.0563978485.

Adding to 315215 its reverse (512513), we get a palindrome (827728).

The spelling of 315215 in words is "three hundred fifteen thousand, two hundred fifteen".