12594139 has 4 divisors (see below), whose sum is σ = 12639240. Its totient is φ = 12549040.

The previous prime is 12594137. The next prime is 12594143. The reversal of 12594139 is 93149521.

12594139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93149521 = 1801 ⋅51721.

It is a cyclic number.

It is not a de Polignac number, because 12594139 - 2¹ = 12594137 is a prime.

It is a super-2 number, since 2×12594139² = 317224674302642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12594137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22129 + ... + 22690.

It is an arithmetic number, because the mean of its divisors is an integer number (3159810).

Almost surely, 2^12594139 is an apocalyptic number.

12594139 is a deficient number, since it is larger than the sum of its proper divisors (45101).

12594139 is an equidigital number, since it uses as much as digits as its factorization.

12594139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45100.

The product of its digits is 9720, while the sum is 34.

The square root of 12594139 is about 3548.8221989838. The cubic root of 12594139 is about 232.6605912523.

The spelling of 12594139 in words is "twelve million, five hundred ninety-four thousand, one hundred thirty-nine".