68354159 has 2 divisors, whose sum is σ = 68354160. Its totient is φ = 68354158.

The previous prime is 68354149. The next prime is 68354171. The reversal of 68354159 is 95145386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68354159 - 2²⁰ = 67305583 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 (68354129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34177079 + 34177080.

It is an arithmetic number, because the mean of its divisors is an integer number (34177080).

Almost surely, 2^68354159 is an apocalyptic number.

68354159 is a deficient number, since it is larger than the sum of its proper divisors (1).

68354159 is an equidigital number, since it uses as much as digits as its factorization.

68354159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 68354159 is about 8267.6574070289. The cubic root of 68354159 is about 408.8728888858.

The spelling of 68354159 in words is "sixty-eight million, three hundred fifty-four thousand, one hundred fifty-nine".