12115739 has 2 divisors, whose sum is σ = 12115740. Its totient is φ = 12115738.

The previous prime is 12115729. The next prime is 12115769. The reversal of 12115739 is 93751121.

12115739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12115739 is a prime.

It is a super-2 number, since 2×12115739² = 293582263032242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12115729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057869 + 6057870.

It is an arithmetic number, because the mean of its divisors is an integer number (6057870).

Almost surely, 2^12115739 is an apocalyptic number.

12115739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115739 is an equidigital number, since it uses as much as digits as its factorization.

12115739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 29.

The square root of 12115739 is about 3480.7670131740. The cubic root of 12115739 is about 229.6765396439.

The spelling of 12115739 in words is "twelve million, one hundred fifteen thousand, seven hundred thirty-nine".