68165089 has 2 divisors, whose sum is σ = 68165090. Its totient is φ = 68165088.

The previous prime is 68165059. The next prime is 68165093. The reversal of 68165089 is 98056186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59213025 + 8952064 = 7695^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 68165089 - 2⁵ = 68165057 is a prime.

It is not a weakly prime, because it can be changed into another prime (68165059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34082544 + 34082545.

It is an arithmetic number, because the mean of its divisors is an integer number (34082545).

Almost surely, 2^68165089 is an apocalyptic number.

It is an amenable number.

68165089 is a deficient number, since it is larger than the sum of its proper divisors (1).

68165089 is an equidigital number, since it uses as much as digits as its factorization.

68165089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 68165089 is about 8256.2151740371. The cubic root of 68165089 is about 408.4955551843.

The spelling of 68165089 in words is "sixty-eight million, one hundred sixty-five thousand, eighty-nine".