159769 has 2 divisors, whose sum is σ = 159770. Its totient is φ = 159768.

The previous prime is 159763. The next prime is 159773. The reversal of 159769 is 967951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 10000 = 387^2 + 100^2 .

It is an emirp because it is prime and its reverse (967951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159769 - 2⁵ = 159737 is a prime.

It is a super-2 number, since 2×159769² = 51052266722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (159763) 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, 79884 + 79885.

It is an arithmetic number, because the mean of its divisors is an integer number (79885).

2¹⁵⁹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

159769 is a deficient number, since it is larger than the sum of its proper divisors (1).

159769 is an equidigital number, since it uses as much as digits as its factorization.

159769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 37.

The square root of 159769 is about 399.7111457040. The cubic root of 159769 is about 54.2622134790.

The spelling of 159769 in words is "one hundred fifty-nine thousand, seven hundred sixty-nine".