12365939 has 2 divisors, whose sum is σ = 12365940. Its totient is φ = 12365938.

The previous prime is 12365933. The next prime is 12365959. The reversal of 12365939 is 93956321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12365939 - 2⁴ = 12365923 is a prime.

It is not a weakly prime, because it can be changed into another prime (12365933) by changing a digit.

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 as a sum of consecutive naturals, namely, 6182969 + 6182970.

It is an arithmetic number, because the mean of its divisors is an integer number (6182970).

Almost surely, 2^12365939 is an apocalyptic number.

12365939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12365939 is an equidigital number, since it uses as much as digits as its factorization.

12365939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 38.

The square root of 12365939 is about 3516.5237095746. The cubic root of 12365939 is about 231.2467831060.

The spelling of 12365939 in words is "twelve million, three hundred sixty-five thousand, nine hundred thirty-nine".