159791 has 2 divisors, whose sum is σ = 159792. Its totient is φ = 159790.

The previous prime is 159787. The next prime is 159793. The reversal of 159791 is 197951.

159791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159791 - 2² = 159787 is a prime.

Together with 159793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79895 + 79896.

It is an arithmetic number, because the mean of its divisors is an integer number (79896).

2¹⁵⁹⁷⁹¹ is an apocalyptic number.

159791 is a deficient number, since it is larger than the sum of its proper divisors (1).

159791 is an equidigital number, since it uses as much as digits as its factorization.

159791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 32.

The square root of 159791 is about 399.7386646298. The cubic root of 159791 is about 54.2647039786.

The spelling of 159791 in words is "one hundred fifty-nine thousand, seven hundred ninety-one".