138989703 has 8 divisors (see below), whose sum is σ = 185398768. Its totient is φ = 92620224.

The previous prime is 138989699. The next prime is 138989743. The reversal of 138989703 is 307989831.

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

It is not a de Polignac number, because 138989703 - 2² = 138989699 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 (138989743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 16677.

It is an arithmetic number, because the mean of its divisors is an integer number (23174846).

Almost surely, 2^138989703 is an apocalyptic number.

138989703 is a deficient number, since it is larger than the sum of its proper divisors (46409065).

138989703 is a wasteful number, since it uses less digits than its factorization.

138989703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19793.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 138989703 is about 11789.3894243934. The cubic root of 138989703 is about 517.9973551740.

The spelling of 138989703 in words is "one hundred thirty-eight million, nine hundred eighty-nine thousand, seven hundred three".