68154659 has 2 divisors, whose sum is σ = 68154660. Its totient is φ = 68154658.

The previous prime is 68154641. The next prime is 68154673. The reversal of 68154659 is 95645186.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68154659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68154689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34077329 + 34077330.

It is an arithmetic number, because the mean of its divisors is an integer number (34077330).

Almost surely, 2^68154659 is an apocalyptic number.

68154659 is a deficient number, since it is larger than the sum of its proper divisors (1).

68154659 is an equidigital number, since it uses as much as digits as its factorization.

68154659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 68154659 is about 8255.5835045138. The cubic root of 68154659 is about 408.4747193672.

The spelling of 68154659 in words is "sixty-eight million, one hundred fifty-four thousand, six hundred fifty-nine".