68000161 has 2 divisors, whose sum is σ = 68000162. Its totient is φ = 68000160.

The previous prime is 68000147. The next prime is 68000171. The reversal of 68000161 is 16100086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64705936 + 3294225 = 8044^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 68000161 - 2⁵ = 68000129 is a prime.

It is not a weakly prime, because it can be changed into another prime (68000171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34000080 + 34000081.

It is an arithmetic number, because the mean of its divisors is an integer number (34000081).

Almost surely, 2^68000161 is an apocalyptic number.

It is an amenable number.

68000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

68000161 is an equidigital number, since it uses as much as digits as its factorization.

68000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 68000161 is about 8246.2210132885. The cubic root of 68000161 is about 408.1658323221.

The spelling of 68000161 in words is "sixty-eight million, one hundred sixty-one", and thus it is an aban number.