68715259 has 2 divisors, whose sum is σ = 68715260. Its totient is φ = 68715258.

The previous prime is 68715233. The next prime is 68715263. The reversal of 68715259 is 95251786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68715259 - 2⁷ = 68715131 is a prime.

It is not a weakly prime, because it can be changed into another prime (68715299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34357629 + 34357630.

It is an arithmetic number, because the mean of its divisors is an integer number (34357630).

Almost surely, 2^68715259 is an apocalyptic number.

68715259 is a deficient number, since it is larger than the sum of its proper divisors (1).

68715259 is an equidigital number, since it uses as much as digits as its factorization.

68715259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 68715259 is about 8289.4667500389. The cubic root of 68715259 is about 409.5916199400.

The spelling of 68715259 in words is "sixty-eight million, seven hundred fifteen thousand, two hundred fifty-nine".