13011839 has 2 divisors, whose sum is σ = 13011840. Its totient is φ = 13011838.

The previous prime is 13011829. The next prime is 13011841. The reversal of 13011839 is 93811031.

It is a strong prime.

It is an emirp because it is prime and its reverse (93811031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13011839 - 2¹⁶ = 12946303 is a prime.

Together with 13011841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13011829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505919 + 6505920.

It is an arithmetic number, because the mean of its divisors is an integer number (6505920).

Almost surely, 2^13011839 is an apocalyptic number.

13011839 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011839 is an equidigital number, since it uses as much as digits as its factorization.

13011839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 13011839 is about 3607.1926757522. The cubic root of 13011839 is about 235.2048251956.

The spelling of 13011839 in words is "thirteen million, eleven thousand, eight hundred thirty-nine".