9135839 has 2 divisors, whose sum is σ = 9135840. Its totient is φ = 9135838.

The previous prime is 9135829. The next prime is 9135857. The reversal of 9135839 is 9385319.

It is a weak prime.

It is an emirp because it is prime and its reverse (9385319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9135839 - 2²⁰ = 8087263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9135829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4567919 + 4567920.

It is an arithmetic number, because the mean of its divisors is an integer number (4567920).

Almost surely, 2^9135839 is an apocalyptic number.

9135839 is a deficient number, since it is larger than the sum of its proper divisors (1).

9135839 is an equidigital number, since it uses as much as digits as its factorization.

9135839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 9135839 is about 3022.5550449909. Note that the first 3 decimals coincide. The cubic root of 9135839 is about 209.0496665462.

The spelling of 9135839 in words is "nine million, one hundred thirty-five thousand, eight hundred thirty-nine".