120143239 has 2 divisors, whose sum is σ = 120143240. Its totient is φ = 120143238.

The previous prime is 120143207. The next prime is 120143249. The reversal of 120143239 is 932341021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120143239 - 2⁵ = 120143207 is a prime.

It is a super-2 number, since 2×120143239² = 28868795754822242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120143249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071619 + 60071620.

It is an arithmetic number, because the mean of its divisors is an integer number (60071620).

Almost surely, 2^120143239 is an apocalyptic number.

120143239 is a deficient number, since it is larger than the sum of its proper divisors (1).

120143239 is an equidigital number, since it uses as much as digits as its factorization.

120143239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 120143239 is about 10960.9871362027. The cubic root of 120143239 is about 493.4385911373.

The spelling of 120143239 in words is "one hundred twenty million, one hundred forty-three thousand, two hundred thirty-nine".