68941261 has 2 divisors, whose sum is σ = 68941262. Its totient is φ = 68941260.

The previous prime is 68941219. The next prime is 68941267. The reversal of 68941261 is 16214986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65448100 + 3493161 = 8090^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 68941261 - 2⁹ = 68940749 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68941261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68941267) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34470630 + 34470631.

It is an arithmetic number, because the mean of its divisors is an integer number (34470631).

Almost surely, 2^68941261 is an apocalyptic number.

It is an amenable number.

68941261 is a deficient number, since it is larger than the sum of its proper divisors (1).

68941261 is an equidigital number, since it uses as much as digits as its factorization.

68941261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 68941261 is about 8303.0874378149. The cubic root of 68941261 is about 410.0401725459.

The spelling of 68941261 in words is "sixty-eight million, nine hundred forty-one thousand, two hundred sixty-one".