12338915 has 4 divisors (see below), whose sum is σ = 14806704. Its totient is φ = 9871128.

The previous prime is 12338903. The next prime is 12338927. The reversal of 12338915 is 51983321.

12338915 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51983321 = 13 ⋅3998717.

It is an interprime number because it is at equal distance from previous prime (12338903) and next prime (12338927).

It is a cyclic number.

It is not a de Polignac number, because 12338915 - 2¹⁰ = 12337891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233887 + ... + 1233896.

It is an arithmetic number, because the mean of its divisors is an integer number (3701676).

Almost surely, 2^12338915 is an apocalyptic number.

12338915 is a deficient number, since it is larger than the sum of its proper divisors (2467789).

12338915 is an equidigital number, since it uses as much as digits as its factorization.

12338915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467788.

The product of its digits is 6480, while the sum is 32.

The square root of 12338915 is about 3512.6791769246. The cubic root of 12338915 is about 231.0782079346.

The spelling of 12338915 in words is "twelve million, three hundred thirty-eight thousand, nine hundred fifteen".