12365139 has 8 divisors (see below), whose sum is σ = 16506880. Its totient is φ = 8233416.

The previous prime is 12365117. The next prime is 12365153. The reversal of 12365139 is 93156321.

12365139 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 12365139 - 2¹³ = 12356947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12365179) 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, 1134 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (2063360).

Almost surely, 2^12365139 is an apocalyptic number.

12365139 is a deficient number, since it is larger than the sum of its proper divisors (4141741).

12365139 is a wasteful number, since it uses less digits than its factorization.

12365139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009.

The product of its digits is 4860, while the sum is 30.

The square root of 12365139 is about 3516.4099590349. The cubic root of 12365139 is about 231.2417962515.

The spelling of 12365139 in words is "twelve million, three hundred sixty-five thousand, one hundred thirty-nine".