68170961 has 2 divisors, whose sum is σ = 68170962. Its totient is φ = 68170960.

The previous prime is 68170951. The next prime is 68170981. The reversal of 68170961 is 16907186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45427600 + 22743361 = 6740^2 + 4769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68170961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68170951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34085480 + 34085481.

It is an arithmetic number, because the mean of its divisors is an integer number (34085481).

Almost surely, 2^68170961 is an apocalyptic number.

It is an amenable number.

68170961 is a deficient number, since it is larger than the sum of its proper divisors (1).

68170961 is an equidigital number, since it uses as much as digits as its factorization.

68170961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 68170961 is about 8256.5707772658. The cubic root of 68170961 is about 408.5072846343.

The spelling of 68170961 in words is "sixty-eight million, one hundred seventy thousand, nine hundred sixty-one".