68118539 has 2 divisors, whose sum is σ = 68118540. Its totient is φ = 68118538.

The previous prime is 68118527. The next prime is 68118551. The reversal of 68118539 is 93581186.

It is a balanced prime because it is at equal distance from previous prime (68118527) and next prime (68118551).

It is a cyclic number.

It is not a de Polignac number, because 68118539 - 2⁸ = 68118283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68118496 and 68118505.

It is not a weakly prime, because it can be changed into another prime (68118139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34059269 + 34059270.

It is an arithmetic number, because the mean of its divisors is an integer number (34059270).

Almost surely, 2^68118539 is an apocalyptic number.

68118539 is a deficient number, since it is larger than the sum of its proper divisors (1).

68118539 is an equidigital number, since it uses as much as digits as its factorization.

68118539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 41.

The square root of 68118539 is about 8253.3956042347. The cubic root of 68118539 is about 408.4025466830.

The spelling of 68118539 in words is "sixty-eight million, one hundred eighteen thousand, five hundred thirty-nine".