12315 has 8 divisors (see below), whose sum is σ = 19728. Its totient is φ = 6560.

The previous prime is 12301. The next prime is 12323. The reversal of 12315 is 51321.

12315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12315 - 2⁶ = 12251 is a prime.

12315 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 12315.

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, 396 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (2466).

2¹²³¹⁵ is an apocalyptic number.

12315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12315 is a deficient number, since it is larger than the sum of its proper divisors (7413).

12315 is an equidigital number, since it uses as much as digits as its factorization.

12315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 30, while the sum is 12.

The square root of 12315 is about 110.9729696818. The cubic root of 12315 is about 23.0928821232.

Adding to 12315 its reverse (51321), we get a palindrome (63636).

The spelling of 12315 in words is "twelve thousand, three hundred fifteen".