12984139 has 8 divisors (see below), whose sum is σ = 14870528. Its totient is φ = 11105640.

The previous prime is 12984113. The next prime is 12984149. The reversal of 12984139 is 93148921.

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

It is not a de Polignac number, because 12984139 - 2¹¹ = 12982091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12984098 and 12984107.

It is not an unprimeable number, because it can be changed into a prime (12984149) 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 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (1858816).

Almost surely, 2^12984139 is an apocalyptic number.

12984139 is a deficient number, since it is larger than the sum of its proper divisors (1886389).

12984139 is an equidigital number, since it uses as much as digits as its factorization.

12984139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945.

The product of its digits is 15552, while the sum is 37.

The square root of 12984139 is about 3603.3510792039. The cubic root of 12984139 is about 235.0378028819.

The spelling of 12984139 in words is "twelve million, nine hundred eighty-four thousand, one hundred thirty-nine".