139438103 has 16 divisors (see below), whose sum is σ = 162852096. Its totient is φ = 116925120.

The previous prime is 139438087. The next prime is 139438111. The reversal of 139438103 is 301834931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 139438103 - 2⁴ = 139438087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139438103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139438183) 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 in 15 ways as a sum of consecutive naturals, for example, 65900 + ... + 67982.

It is an arithmetic number, because the mean of its divisors is an integer number (10178256).

Almost surely, 2^139438103 is an apocalyptic number.

139438103 is a deficient number, since it is larger than the sum of its proper divisors (23413993).

139438103 is a wasteful number, since it uses less digits than its factorization.

139438103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 139438103 is about 11808.3912113378. The cubic root of 139438103 is about 518.5538009091.

The spelling of 139438103 in words is "one hundred thirty-nine million, four hundred thirty-eight thousand, one hundred three".