68316169 has 2 divisors, whose sum is σ = 68316170. Its totient is φ = 68316168.

The previous prime is 68316161. The next prime is 68316179. The reversal of 68316169 is 96161386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 19035769 = 7020^2 + 4363^2 .

It is a cyclic number.

It is not a de Polignac number, because 68316169 - 2³ = 68316161 is a prime.

It is a super-2 number, since 2×68316169² = 9334197893673122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68316161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34158084 + 34158085.

It is an arithmetic number, because the mean of its divisors is an integer number (34158085).

Almost surely, 2^68316169 is an apocalyptic number.

It is an amenable number.

68316169 is a deficient number, since it is larger than the sum of its proper divisors (1).

68316169 is an equidigital number, since it uses as much as digits as its factorization.

68316169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 68316169 is about 8265.3595808047. The cubic root of 68316169 is about 408.7971268067.

The spelling of 68316169 in words is "sixty-eight million, three hundred sixteen thousand, one hundred sixty-nine".