68296181 has 2 divisors, whose sum is σ = 68296182. Its totient is φ = 68296180.

The previous prime is 68296147. The next prime is 68296199. The reversal of 68296181 is 18169286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60684100 + 7612081 = 7790^2 + 2759^2 .

It is a cyclic number.

It is not a de Polignac number, because 68296181 - 2¹⁸ = 68034037 is a prime.

It is a super-2 number, since 2×68296181² = 9328736678369522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68290181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34148090 + 34148091.

It is an arithmetic number, because the mean of its divisors is an integer number (34148091).

Almost surely, 2^68296181 is an apocalyptic number.

It is an amenable number.

68296181 is a deficient number, since it is larger than the sum of its proper divisors (1).

68296181 is an equidigital number, since it uses as much as digits as its factorization.

68296181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 41.

The square root of 68296181 is about 8264.1503495520. The cubic root of 68296181 is about 408.7572541864.

The spelling of 68296181 in words is "sixty-eight million, two hundred ninety-six thousand, one hundred eighty-one".