13127839 has 2 divisors, whose sum is σ = 13127840. Its totient is φ = 13127838.

The previous prime is 13127827. The next prime is 13127843. The reversal of 13127839 is 93872131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13127839 - 2¹³ = 13119647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563919 + 6563920.

It is an arithmetic number, because the mean of its divisors is an integer number (6563920).

Almost surely, 2^13127839 is an apocalyptic number.

13127839 is a deficient number, since it is larger than the sum of its proper divisors (1).

13127839 is an equidigital number, since it uses as much as digits as its factorization.

13127839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 13127839 is about 3623.2359845862. The cubic root of 13127839 is about 235.9017054509.

The spelling of 13127839 in words is "thirteen million, one hundred twenty-seven thousand, eight hundred thirty-nine".