138706103 has 2 divisors, whose sum is σ = 138706104. Its totient is φ = 138706102.

The previous prime is 138706091. The next prime is 138706153. The reversal of 138706103 is 301607831.

138706103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138706103 - 2⁶ = 138706039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138706153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69353051 + 69353052.

It is an arithmetic number, because the mean of its divisors is an integer number (69353052).

Almost surely, 2^138706103 is an apocalyptic number.

138706103 is a deficient number, since it is larger than the sum of its proper divisors (1).

138706103 is an equidigital number, since it uses as much as digits as its factorization.

138706103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 138706103 is about 11777.3555181119. The cubic root of 138706103 is about 517.6448012883.

The spelling of 138706103 in words is "one hundred thirty-eight million, seven hundred six thousand, one hundred three".