12399315 has 8 divisors (see below), whose sum is σ = 19838928. Its totient is φ = 6612960.

The previous prime is 12399313. The next prime is 12399347. The reversal of 12399315 is 51399321.

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

It is not a de Polignac number, because 12399315 - 2¹ = 12399313 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12399311) 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, 413296 + ... + 413325.

It is an arithmetic number, because the mean of its divisors is an integer number (2479866).

Almost surely, 2^12399315 is an apocalyptic number.

12399315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12399315 is a deficient number, since it is larger than the sum of its proper divisors (7439613).

12399315 is an equidigital number, since it uses as much as digits as its factorization.

12399315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826629.

The product of its digits is 7290, while the sum is 33.

The square root of 12399315 is about 3521.2661075244. The cubic root of 12399315 is about 231.4546432948.

The spelling of 12399315 in words is "twelve million, three hundred ninety-nine thousand, three hundred fifteen".