12368139 has 12 divisors (see below), whose sum is σ = 19183464. Its totient is φ = 7067424.

The previous prime is 12368131. The next prime is 12368143. The reversal of 12368139 is 93186321.

It is not a de Polignac number, because 12368139 - 2³ = 12368131 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12368131) 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 in 11 ways as a sum of consecutive naturals, for example, 41922 + ... + 42215.

It is an arithmetic number, because the mean of its divisors is an integer number (1598622).

Almost surely, 2^12368139 is an apocalyptic number.

12368139 is a deficient number, since it is larger than the sum of its proper divisors (6815325).

12368139 is an equidigital number, since it uses as much as digits as its factorization.

12368139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84154 (or 84147 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 12368139 is about 3516.8365045876. The cubic root of 12368139 is about 231.2604958470.

The spelling of 12368139 in words is "twelve million, three hundred sixty-eight thousand, one hundred thirty-nine".