168089 has 2 divisors, whose sum is σ = 168090. Its totient is φ = 168088.

The previous prime is 168083. The next prime is 168109. The reversal of 168089 is 980861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100489 + 67600 = 317^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 168089 - 2¹² = 163993 is a prime.

It is not a weakly prime, because it can be changed into another prime (168083) 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, 84044 + 84045.

It is an arithmetic number, because the mean of its divisors is an integer number (84045).

2¹⁶⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

168089 is a deficient number, since it is larger than the sum of its proper divisors (1).

168089 is an equidigital number, since it uses as much as digits as its factorization.

168089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 168089 is about 409.9865851464. The cubic root of 168089 is about 55.1882256270.

The spelling of 168089 in words is "one hundred sixty-eight thousand, eighty-nine".