138183 has 4 divisors (see below), whose sum is σ = 184248. Its totient is φ = 92120.

The previous prime is 138181. The next prime is 138191. The reversal of 138183 is 381831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381831 = 3 ⋅127277.

It is a cyclic number.

It is not a de Polignac number, because 138183 - 2¹ = 138181 is a prime.

It is a D-number.

138183 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138181) 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, 23028 + ... + 23033.

It is an arithmetic number, because the mean of its divisors is an integer number (46062).

2¹³⁸¹⁸³ is an apocalyptic number.

138183 is a deficient number, since it is larger than the sum of its proper divisors (46065).

138183 is an equidigital number, since it uses as much as digits as its factorization.

138183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46064.

The product of its digits is 576, while the sum is 24.

The square root of 138183 is about 371.7297405374. The cubic root of 138183 is about 51.6993249416.

The spelling of 138183 in words is "one hundred thirty-eight thousand, one hundred eighty-three".