12016139 has 2 divisors, whose sum is σ = 12016140. Its totient is φ = 12016138.

The previous prime is 12016129. The next prime is 12016141. The reversal of 12016139 is 93161021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12016139 is a prime.

Together with 12016141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12016129) 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 as a sum of consecutive naturals, namely, 6008069 + 6008070.

It is an arithmetic number, because the mean of its divisors is an integer number (6008070).

Almost surely, 2^12016139 is an apocalyptic number.

12016139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12016139 is an equidigital number, since it uses as much as digits as its factorization.

12016139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 12016139 is about 3466.4302964289. The cubic root of 12016139 is about 229.0454388835.

The spelling of 12016139 in words is "twelve million, sixteen thousand, one hundred thirty-nine".