68731043 has 2 divisors, whose sum is σ = 68731044. Its totient is φ = 68731042.

The previous prime is 68731009. The next prime is 68731049. The reversal of 68731043 is 34013786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68731043 - 2⁸ = 68730787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68731049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34365521 + 34365522.

It is an arithmetic number, because the mean of its divisors is an integer number (34365522).

Almost surely, 2^68731043 is an apocalyptic number.

68731043 is a deficient number, since it is larger than the sum of its proper divisors (1).

68731043 is an equidigital number, since it uses as much as digits as its factorization.

68731043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 68731043 is about 8290.4187469633. The cubic root of 68731043 is about 409.6229788128.

The spelling of 68731043 in words is "sixty-eight million, seven hundred thirty-one thousand, forty-three".