168648089 has 2 divisors, whose sum is σ = 168648090. Its totient is φ = 168648088.

The previous prime is 168648059. The next prime is 168648097. The reversal of 168648089 is 980846861.

It is a happy number.

168648089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137288089 + 31360000 = 11717^2 + 5600^2 .

It is a cyclic number.

It is not a de Polignac number, because 168648089 - 2⁸ = 168647833 is a prime.

It is not a weakly prime, because it can be changed into another prime (168648049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84324044 + 84324045.

It is an arithmetic number, because the mean of its divisors is an integer number (84324045).

Almost surely, 2^168648089 is an apocalyptic number.

It is an amenable number.

168648089 is a deficient number, since it is larger than the sum of its proper divisors (1).

168648089 is an equidigital number, since it uses as much as digits as its factorization.

168648089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 168648089 is about 12986.4579081442. The cubic root of 168648089 is about 552.4934599255.

The spelling of 168648089 in words is "one hundred sixty-eight million, six hundred forty-eight thousand, eighty-nine".