138397103 has 4 divisors (see below), whose sum is σ = 149043048. Its totient is φ = 127751160.

The previous prime is 138397097. The next prime is 138397109. The reversal of 138397103 is 301793831.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (138397097) and next prime (138397109).

It is a cyclic number.

It is not a de Polignac number, because 138397103 - 2¹⁰ = 138396079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138397109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5322953 + ... + 5322978.

It is an arithmetic number, because the mean of its divisors is an integer number (37260762).

Almost surely, 2^138397103 is an apocalyptic number.

138397103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138397103 is a deficient number, since it is larger than the sum of its proper divisors (10645945).

138397103 is a wasteful number, since it uses less digits than its factorization.

138397103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645944.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 138397103 is about 11764.2298090440. The cubic root of 138397103 is about 517.2601242283.

The spelling of 138397103 in words is "one hundred thirty-eight million, three hundred ninety-seven thousand, one hundred three".