159779 has 2 divisors, whose sum is σ = 159780. Its totient is φ = 159778.

The previous prime is 159773. The next prime is 159787. The reversal of 159779 is 977951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159779 - 2⁴ = 159763 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 159779.

It is not a weakly prime, because it can be changed into another prime (159773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79889 + 79890.

It is an arithmetic number, because the mean of its divisors is an integer number (79890).

2¹⁵⁹⁷⁷⁹ is an apocalyptic number.

159779 is a deficient number, since it is larger than the sum of its proper divisors (1).

159779 is an equidigital number, since it uses as much as digits as its factorization.

159779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19845, while the sum is 38.

The square root of 159779 is about 399.7236545415. The cubic root of 159779 is about 54.2633455526.

The spelling of 159779 in words is "one hundred fifty-nine thousand, seven hundred seventy-nine".