68112493 has 2 divisors, whose sum is σ = 68112494. Its totient is φ = 68112492.

The previous prime is 68112479. The next prime is 68112497. The reversal of 68112493 is 39421186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68112009 + 484 = 8253^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 68112493 - 2¹⁷ = 67981421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68112497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34056246 + 34056247.

It is an arithmetic number, because the mean of its divisors is an integer number (34056247).

Almost surely, 2^68112493 is an apocalyptic number.

It is an amenable number.

68112493 is a deficient number, since it is larger than the sum of its proper divisors (1).

68112493 is an equidigital number, since it uses as much as digits as its factorization.

68112493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 68112493 is about 8253.0293226185. The cubic root of 68112493 is about 408.3904634582.

The spelling of 68112493 in words is "sixty-eight million, one hundred twelve thousand, four hundred ninety-three".