68641141 has 2 divisors, whose sum is σ = 68641142. Its totient is φ = 68641140.

The previous prime is 68641123. The next prime is 68641151. The reversal of 68641141 is 14114686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58844241 + 9796900 = 7671^2 + 3130^2 .

It is a cyclic number.

It is not a de Polignac number, because 68641141 - 2⁵ = 68641109 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 (68641151) 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, 34320570 + 34320571.

It is an arithmetic number, because the mean of its divisors is an integer number (34320571).

Almost surely, 2^68641141 is an apocalyptic number.

It is an amenable number.

68641141 is a deficient number, since it is larger than the sum of its proper divisors (1).

68641141 is an equidigital number, since it uses as much as digits as its factorization.

68641141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 68641141 is about 8284.9949305959. The cubic root of 68641141 is about 409.4443016991. Note that the first 3 decimals are identical.

The spelling of 68641141 in words is "sixty-eight million, six hundred forty-one thousand, one hundred forty-one".