138889196 has 12 divisors (see below), whose sum is σ = 244666800. Its totient is φ = 68984400.

The previous prime is 138889193. The next prime is 138889199. The reversal of 138889196 is 691988831.

138889196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138889193) and next prime (138889199).

It is not an unprimeable number, because it can be changed into a prime (138889193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114371 + ... + 115578.

It is an arithmetic number, because the mean of its divisors is an integer number (20388900).

Almost surely, 2^138889196 is an apocalyptic number.

It is an amenable number.

138889196 is a deficient number, since it is larger than the sum of its proper divisors (105777604).

138889196 is a wasteful number, since it uses less digits than its factorization.

138889196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230104 (or 230102 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The square root of 138889196 is about 11785.1260493895. The cubic root of 138889196 is about 517.8724660316.

The spelling of 138889196 in words is "one hundred thirty-eight million, eight hundred eighty-nine thousand, one hundred ninety-six".