68130539 has 2 divisors, whose sum is σ = 68130540. Its totient is φ = 68130538.

The previous prime is 68130499. The next prime is 68130551. The reversal of 68130539 is 93503186.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68130539 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68130499 and 68130508.

It is not a weakly prime, because it can be changed into another prime (68130739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34065269 + 34065270.

It is an arithmetic number, because the mean of its divisors is an integer number (34065270).

Almost surely, 2^68130539 is an apocalyptic number.

68130539 is a deficient number, since it is larger than the sum of its proper divisors (1).

68130539 is an equidigital number, since it uses as much as digits as its factorization.

68130539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 68130539 is about 8254.1225457343. The cubic root of 68130539 is about 408.4265271484.

The spelling of 68130539 in words is "sixty-eight million, one hundred thirty thousand, five hundred thirty-nine".