138843083 has 2 divisors, whose sum is σ = 138843084. Its totient is φ = 138843082.

The previous prime is 138843077. The next prime is 138843113. The reversal of 138843083 is 380348831.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (380348831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138843083 - 2²⁰ = 137794507 is a prime.

It is a Chen prime.

It is equal to p_7850369 and since 138843083 and 7850369 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (138843043) 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, 69421541 + 69421542.

It is an arithmetic number, because the mean of its divisors is an integer number (69421542).

Almost surely, 2^138843083 is an apocalyptic number.

138843083 is a deficient number, since it is larger than the sum of its proper divisors (1).

138843083 is an equidigital number, since it uses as much as digits as its factorization.

138843083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 138843083 is about 11783.1694802375. The cubic root of 138843083 is about 517.8151462470.

The spelling of 138843083 in words is "one hundred thirty-eight million, eight hundred forty-three thousand, eighty-three".