68170313 has 2 divisors, whose sum is σ = 68170314. Its totient is φ = 68170312.

The previous prime is 68170283. The next prime is 68170327. The reversal of 68170313 is 31307186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52591504 + 15578809 = 7252^2 + 3947^2 .

It is a cyclic number.

It is not a de Polignac number, because 68170313 - 2⁸ = 68170057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68170343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34085156 + 34085157.

It is an arithmetic number, because the mean of its divisors is an integer number (34085157).

Almost surely, 2^68170313 is an apocalyptic number.

It is an amenable number.

68170313 is a deficient number, since it is larger than the sum of its proper divisors (1).

68170313 is an equidigital number, since it uses as much as digits as its factorization.

68170313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 68170313 is about 8256.5315356995. The cubic root of 68170313 is about 408.5059902730.

Adding to 68170313 its reverse (31307186), we get a palindrome (99477499).

The spelling of 68170313 in words is "sixty-eight million, one hundred seventy thousand, three hundred thirteen".