165089 has 2 divisors, whose sum is σ = 165090. Its totient is φ = 165088.

The previous prime is 165083. The next prime is 165103. The reversal of 165089 is 980561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94864 + 70225 = 308^2 + 265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165083) 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, 82544 + 82545.

It is an arithmetic number, because the mean of its divisors is an integer number (82545).

2¹⁶⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

165089 is a deficient number, since it is larger than the sum of its proper divisors (1).

165089 is an equidigital number, since it uses as much as digits as its factorization.

165089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 165089 is about 406.3114568899. The cubic root of 165089 is about 54.8579253231.

The spelling of 165089 in words is "one hundred sixty-five thousand, eighty-nine".