12599139 has 8 divisors (see below), whose sum is σ = 19198720. Its totient is φ = 7199496.

The previous prime is 12599131. The next prime is 12599141. The reversal of 12599139 is 93199521.

12599139 is digitally balanced in base 2, 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 12599139 - 2³ = 12599131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12599097 and 12599106.

It is not an unprimeable number, because it can be changed into a prime (12599131) 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, 299959 + ... + 300000.

It is an arithmetic number, because the mean of its divisors is an integer number (2399840).

Almost surely, 2^12599139 is an apocalyptic number.

12599139 is a deficient number, since it is larger than the sum of its proper divisors (6599581).

12599139 is an equidigital number, since it uses as much as digits as its factorization.

12599139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599969.

The product of its digits is 21870, while the sum is 39.

The square root of 12599139 is about 3549.5265881523. The cubic root of 12599139 is about 232.6913767111.

The spelling of 12599139 in words is "twelve million, five hundred ninety-nine thousand, one hundred thirty-nine".