159839 has 2 divisors, whose sum is σ = 159840. Its totient is φ = 159838.

The previous prime is 159833. The next prime is 159853. The reversal of 159839 is 938951.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159839 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 159799 and 159808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79919 + 79920.

It is an arithmetic number, because the mean of its divisors is an integer number (79920).

2¹⁵⁹⁸³⁹ is an apocalyptic number.

159839 is a deficient number, since it is larger than the sum of its proper divisors (1).

159839 is an equidigital number, since it uses as much as digits as its factorization.

159839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 35.

The square root of 159839 is about 399.7986993476. The cubic root of 159839 is about 54.2701370026.

The spelling of 159839 in words is "one hundred fifty-nine thousand, eight hundred thirty-nine".