68137141 has 2 divisors, whose sum is σ = 68137142. Its totient is φ = 68137140.

The previous prime is 68137129. The next prime is 68137177. The reversal of 68137141 is 14173186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67996516 + 140625 = 8246^2 + 375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68137141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68137441) 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, 34068570 + 34068571.

It is an arithmetic number, because the mean of its divisors is an integer number (34068571).

Almost surely, 2^68137141 is an apocalyptic number.

It is an amenable number.

68137141 is a deficient number, since it is larger than the sum of its proper divisors (1).

68137141 is an equidigital number, since it uses as much as digits as its factorization.

68137141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 68137141 is about 8254.5224574169. The cubic root of 68137141 is about 408.4397192004.

The spelling of 68137141 in words is "sixty-eight million, one hundred thirty-seven thousand, one hundred forty-one".