68196461 has 2 divisors, whose sum is σ = 68196462. Its totient is φ = 68196460.

The previous prime is 68196433. The next prime is 68196467. The reversal of 68196461 is 16469186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 16859236 = 7165^2 + 4106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68196461 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 (68196467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34098230 + 34098231.

It is an arithmetic number, because the mean of its divisors is an integer number (34098231).

Almost surely, 2^68196461 is an apocalyptic number.

It is an amenable number.

68196461 is a deficient number, since it is larger than the sum of its proper divisors (1).

68196461 is an equidigital number, since it uses as much as digits as its factorization.

68196461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 68196461 is about 8258.1148575204. The cubic root of 68196461 is about 408.5582136371.

The spelling of 68196461 in words is "sixty-eight million, one hundred ninety-six thousand, four hundred sixty-one".