159208939 has 2 divisors, whose sum is σ = 159208940. Its totient is φ = 159208938.

The previous prime is 159208877. The next prime is 159208969. The reversal of 159208939 is 939802951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159208939 - 2²³ = 150820331 is a prime.

It is not a weakly prime, because it can be changed into another prime (159208969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79604469 + 79604470.

It is an arithmetic number, because the mean of its divisors is an integer number (79604470).

Almost surely, 2^159208939 is an apocalyptic number.

159208939 is a deficient number, since it is larger than the sum of its proper divisors (1).

159208939 is an equidigital number, since it uses as much as digits as its factorization.

159208939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 159208939 is about 12617.8024631867. The cubic root of 159208939 is about 541.9873489601.

The spelling of 159208939 in words is "one hundred fifty-nine million, two hundred eight thousand, nine hundred thirty-nine".