168718097 has 2 divisors, whose sum is σ = 168718098. Its totient is φ = 168718096.

The previous prime is 168718079. The next prime is 168718159. The reversal of 168718097 is 790817861.

Together with previous prime (168718079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157151296 + 11566801 = 12536^2 + 3401^2 .

It is an emirp because it is prime and its reverse (790817861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168718097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168711097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84359048 + 84359049.

It is an arithmetic number, because the mean of its divisors is an integer number (84359049).

Almost surely, 2^168718097 is an apocalyptic number.

It is an amenable number.

168718097 is a deficient number, since it is larger than the sum of its proper divisors (1).

168718097 is an equidigital number, since it uses as much as digits as its factorization.

168718097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 47.

The square root of 168718097 is about 12989.1530516812. The cubic root of 168718097 is about 552.5698984066.

The spelling of 168718097 in words is "one hundred sixty-eight million, seven hundred eighteen thousand, ninety-seven".