68430161 has 2 divisors, whose sum is σ = 68430162. Its totient is φ = 68430160.

The previous prime is 68430149. The next prime is 68430181. The reversal of 68430161 is 16103486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 15649936 = 7265^2 + 3956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68430161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68430101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34215080 + 34215081.

It is an arithmetic number, because the mean of its divisors is an integer number (34215081).

Almost surely, 2^68430161 is an apocalyptic number.

It is an amenable number.

68430161 is a deficient number, since it is larger than the sum of its proper divisors (1).

68430161 is an equidigital number, since it uses as much as digits as its factorization.

68430161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 68430161 is about 8272.2524743869. The cubic root of 68430161 is about 409.0243727044.

The spelling of 68430161 in words is "sixty-eight million, four hundred thirty thousand, one hundred sixty-one".