120839317 has 4 divisors (see below), whose sum is σ = 125006220. Its totient is φ = 116672416.

The previous prime is 120839287. The next prime is 120839339. The reversal of 120839317 is 713938021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27311076 + 93528241 = 5226^2 + 9671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120839317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120839347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083408 + ... + 2083465.

It is an arithmetic number, because the mean of its divisors is an integer number (31251555).

Almost surely, 2^120839317 is an apocalyptic number.

It is an amenable number.

120839317 is a deficient number, since it is larger than the sum of its proper divisors (4166903).

120839317 is an equidigital number, since it uses as much as digits as its factorization.

120839317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166902.

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

The square root of 120839317 is about 10992.6938008843. The cubic root of 120839317 is about 494.3897073475.

The spelling of 120839317 in words is "one hundred twenty million, eight hundred thirty-nine thousand, three hundred seventeen".