138186183 has 16 divisors (see below), whose sum is σ = 205355520. Its totient is φ = 82141056.

The previous prime is 138186163. The next prime is 138186193. The reversal of 138186183 is 381681831.

138186183 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138186183 - 2⁵ = 138186151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138186163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70335 + ... + 72272.

It is an arithmetic number, because the mean of its divisors is an integer number (12834720).

Almost surely, 2^138186183 is an apocalyptic number.

138186183 is a deficient number, since it is larger than the sum of its proper divisors (67169337).

138186183 is a wasteful number, since it uses less digits than its factorization.

138186183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142646.

The product of its digits is 27648, while the sum is 39.

The square root of 138186183 is about 11755.2619281750. The cubic root of 138186183 is about 516.9972189752.

The spelling of 138186183 in words is "one hundred thirty-eight million, one hundred eighty-six thousand, one hundred eighty-three".