12004139 has 8 divisors (see below), whose sum is σ = 13740000. Its totient is φ = 10273536.

The previous prime is 12004117. The next prime is 12004163. The reversal of 12004139 is 93140021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12004139 - 2¹⁶ = 11938603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12004139.

It is not an unprimeable number, because it can be changed into a prime (12001139) 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, 8057 + ... + 9429.

It is an arithmetic number, because the mean of its divisors is an integer number (1717500).

Almost surely, 2^12004139 is an apocalyptic number.

12004139 is a deficient number, since it is larger than the sum of its proper divisors (1735861).

12004139 is a wasteful number, since it uses less digits than its factorization.

12004139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12004139 is about 3464.6989768232. The cubic root of 12004139 is about 228.9691675530.

The spelling of 12004139 in words is "twelve million, four thousand, one hundred thirty-nine".