166259 has 2 divisors, whose sum is σ = 166260. Its totient is φ = 166258.

The previous prime is 166247. The next prime is 166273. The reversal of 166259 is 952661.

166259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83129 + 83130.

It is an arithmetic number, because the mean of its divisors is an integer number (83130).

2¹⁶⁶²⁵⁹ is an apocalyptic number.

166259 is a deficient number, since it is larger than the sum of its proper divisors (1).

166259 is an equidigital number, since it uses as much as digits as its factorization.

166259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 166259 is about 407.7486971163. The cubic root of 166259 is about 54.9872146590.

The spelling of 166259 in words is "one hundred sixty-six thousand, two hundred fifty-nine".