138703 has 8 divisors (see below), whose sum is σ = 151200. Its totient is φ = 126720.

The previous prime is 138683. The next prime is 138727. The reversal of 138703 is 307831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138703 - 2⁹ = 138191 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 (138763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598 + ... + 796.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹³⁸⁷⁰³ is an apocalyptic number.

138703 is a deficient number, since it is larger than the sum of its proper divisors (12497).

138703 is a wasteful number, since it uses less digits than its factorization.

138703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 138703 is about 372.4285166310. The cubic root of 138703 is about 51.7640941175.

It can be divided in two parts, 138 and 703, that added together give a square (841 = 29²).

The spelling of 138703 in words is "one hundred thirty-eight thousand, seven hundred three".