68136703 has 2 divisors, whose sum is σ = 68136704. Its totient is φ = 68136702.

The previous prime is 68136671. The next prime is 68136743. The reversal of 68136703 is 30763186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68136703 - 2⁵ = 68136671 is a prime.

It is a super-2 number, since 2×68136703² = 9285220591420418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68136743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34068351 + 34068352.

It is an arithmetic number, because the mean of its divisors is an integer number (34068352).

Almost surely, 2^68136703 is an apocalyptic number.

68136703 is a deficient number, since it is larger than the sum of its proper divisors (1).

68136703 is an equidigital number, since it uses as much as digits as its factorization.

68136703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 68136703 is about 8254.4959264633. The cubic root of 68136703 is about 408.4388440195.

Adding to 68136703 its reverse (30763186), we get a palindrome (98899889).

The spelling of 68136703 in words is "sixty-eight million, one hundred thirty-six thousand, seven hundred three".