68175461 has 2 divisors, whose sum is σ = 68175462. Its totient is φ = 68175460.

The previous prime is 68175421. The next prime is 68175487. The reversal of 68175461 is 16457186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50324836 + 17850625 = 7094^2 + 4225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68175461 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 (68175421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34087730 + 34087731.

It is an arithmetic number, because the mean of its divisors is an integer number (34087731).

Almost surely, 2^68175461 is an apocalyptic number.

It is an amenable number.

68175461 is a deficient number, since it is larger than the sum of its proper divisors (1).

68175461 is an equidigital number, since it uses as much as digits as its factorization.

68175461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 68175461 is about 8256.8432829987. The cubic root of 68175461 is about 408.5162730282.

The spelling of 68175461 in words is "sixty-eight million, one hundred seventy-five thousand, four hundred sixty-one".