12711739 has 2 divisors, whose sum is σ = 12711740. Its totient is φ = 12711738.

The previous prime is 12711737. The next prime is 12711749. The reversal of 12711739 is 93711721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12711739 - 2¹ = 12711737 is a prime.

Together with 12711737, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12711739.

It is not a weakly prime, because it can be changed into another prime (12711731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6355869 + 6355870.

It is an arithmetic number, because the mean of its divisors is an integer number (6355870).

Almost surely, 2^12711739 is an apocalyptic number.

12711739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12711739 is an equidigital number, since it uses as much as digits as its factorization.

12711739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 31.

The square root of 12711739 is about 3565.3525772355. The cubic root of 12711739 is about 233.3825186562.

The spelling of 12711739 in words is "twelve million, seven hundred eleven thousand, seven hundred thirty-nine".