120165839 has 2 divisors, whose sum is σ = 120165840. Its totient is φ = 120165838.

The previous prime is 120165803. The next prime is 120165883. The reversal of 120165839 is 938561021.

It is a weak prime.

It is an emirp because it is prime and its reverse (938561021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120165839 - 2²⁰ = 119117263 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120165799 and 120165808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120165239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60082919 + 60082920.

It is an arithmetic number, because the mean of its divisors is an integer number (60082920).

Almost surely, 2^120165839 is an apocalyptic number.

120165839 is a deficient number, since it is larger than the sum of its proper divisors (1).

120165839 is an equidigital number, since it uses as much as digits as its factorization.

120165839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 120165839 is about 10962.0180167705. The cubic root of 120165839 is about 493.4695292438.

The spelling of 120165839 in words is "one hundred twenty million, one hundred sixty-five thousand, eight hundred thirty-nine".