12082139 has 2 divisors, whose sum is σ = 12082140. Its totient is φ = 12082138.

The previous prime is 12082129. The next prime is 12082159. The reversal of 12082139 is 93128021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12082139 - 2⁴ = 12082123 is a prime.

It is not a weakly prime, because it can be changed into another prime (12082129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6041069 + 6041070.

It is an arithmetic number, because the mean of its divisors is an integer number (6041070).

Almost surely, 2^12082139 is an apocalyptic number.

12082139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12082139 is an equidigital number, since it uses as much as digits as its factorization.

12082139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12082139 is about 3475.9371398229. The cubic root of 12082139 is about 229.4640260808.

It can be divided in two parts, 12082 and 139, that added together give a palindrome (12221).

The spelling of 12082139 in words is "twelve million, eighty-two thousand, one hundred thirty-nine".