138856103 has 2 divisors, whose sum is σ = 138856104. Its totient is φ = 138856102.

The previous prime is 138856097. The next prime is 138856121. The reversal of 138856103 is 301658831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138856103 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138856703) 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, 69428051 + 69428052.

It is an arithmetic number, because the mean of its divisors is an integer number (69428052).

Almost surely, 2^138856103 is an apocalyptic number.

138856103 is a deficient number, since it is larger than the sum of its proper divisors (1).

138856103 is an equidigital number, since it uses as much as digits as its factorization.

138856103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 138856103 is about 11783.7219502159. The cubic root of 138856103 is about 517.8313317669.

The spelling of 138856103 in words is "one hundred thirty-eight million, eight hundred fifty-six thousand, one hundred three".