68290451 has 2 divisors, whose sum is σ = 68290452. Its totient is φ = 68290450.

The previous prime is 68290441. The next prime is 68290457. The reversal of 68290451 is 15409286.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68290451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68290457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34145225 + 34145226.

It is an arithmetic number, because the mean of its divisors is an integer number (34145226).

Almost surely, 2^68290451 is an apocalyptic number.

68290451 is a deficient number, since it is larger than the sum of its proper divisors (1).

68290451 is an equidigital number, since it uses as much as digits as its factorization.

68290451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 68290451 is about 8263.8036641731. The cubic root of 68290451 is about 408.7458223878.

The spelling of 68290451 in words is "sixty-eight million, two hundred ninety thousand, four hundred fifty-one".