5165123839 has 2 divisors, whose sum is σ = 5165123840. Its totient is φ = 5165123838.

The previous prime is 5165123827. The next prime is 5165123861. The reversal of 5165123839 is 9383215615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5165123839 - 2²³ = 5156735231 is a prime.

It is a super-3 number, since 3×5165123839³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5165123795 and 5165123804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5165123339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582561919 + 2582561920.

It is an arithmetic number, because the mean of its divisors is an integer number (2582561920).

Almost surely, 2^5165123839 is an apocalyptic number.

5165123839 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165123839 is an equidigital number, since it uses as much as digits as its factorization.

5165123839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 43.

The square root of 5165123839 is about 71868.7960035508. The cubic root of 5165123839 is about 1728.5963018648.

The spelling of 5165123839 in words is "five billion, one hundred sixty-five million, one hundred twenty-three thousand, eight hundred thirty-nine".