168286169 has 2 divisors, whose sum is σ = 168286170. Its totient is φ = 168286168.

The previous prime is 168286163. The next prime is 168286199. The reversal of 168286169 is 961682861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147015625 + 21270544 = 12125^2 + 4612^2 .

It is a cyclic number.

It is not a de Polignac number, because 168286169 - 2²⁰ = 167237593 is a prime.

It is a super-2 number, since 2×168286169² = 56640469353393122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168286163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84143084 + 84143085.

It is an arithmetic number, because the mean of its divisors is an integer number (84143085).

Almost surely, 2^168286169 is an apocalyptic number.

It is an amenable number.

168286169 is a deficient number, since it is larger than the sum of its proper divisors (1).

168286169 is an equidigital number, since it uses as much as digits as its factorization.

168286169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 168286169 is about 12972.5159086432. The cubic root of 168286169 is about 552.0979585743.

The spelling of 168286169 in words is "one hundred sixty-eight million, two hundred eighty-six thousand, one hundred sixty-nine".