138843703 has 2 divisors, whose sum is σ = 138843704. Its totient is φ = 138843702.

The previous prime is 138843673. The next prime is 138843707. The reversal of 138843703 is 307348831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138843703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138843707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69421851 + 69421852.

It is an arithmetic number, because the mean of its divisors is an integer number (69421852).

Almost surely, 2^138843703 is an apocalyptic number.

138843703 is a deficient number, since it is larger than the sum of its proper divisors (1).

138843703 is an equidigital number, since it uses as much as digits as its factorization.

138843703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 138843703 is about 11783.1957889191. The cubic root of 138843703 is about 517.8159170090.

The spelling of 138843703 in words is "one hundred thirty-eight million, eight hundred forty-three thousand, seven hundred three".