68135359 has 2 divisors, whose sum is σ = 68135360. Its totient is φ = 68135358.

The previous prime is 68135351. The next prime is 68135377. The reversal of 68135359 is 95353186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68135359 - 2³ = 68135351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68135351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34067679 + 34067680.

It is an arithmetic number, because the mean of its divisors is an integer number (34067680).

Almost surely, 2^68135359 is an apocalyptic number.

68135359 is a deficient number, since it is larger than the sum of its proper divisors (1).

68135359 is an equidigital number, since it uses as much as digits as its factorization.

68135359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 68135359 is about 8254.4145158818. The cubic root of 68135359 is about 408.4361585094.

The spelling of 68135359 in words is "sixty-eight million, one hundred thirty-five thousand, three hundred fifty-nine".