138118 has 8 divisors (see below), whose sum is σ = 211248. Its totient is φ = 67704.

The previous prime is 138113. The next prime is 138139. The reversal of 138118 is 811831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138113) 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, 546 + ... + 757.

It is an arithmetic number, because the mean of its divisors is an integer number (26406).

2¹³⁸¹¹⁸ is an apocalyptic number.

138118 is a deficient number, since it is larger than the sum of its proper divisors (73130).

138118 is a wasteful number, since it uses less digits than its factorization.

138118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358.

The product of its digits is 192, while the sum is 22.

The square root of 138118 is about 371.6423011445. The cubic root of 138118 is about 51.6912173761.

Adding to 138118 its reverse (811831), we get a palindrome (949949).

It can be divided in two parts, 138 and 118, that added together give a 8-th power (256 = 2⁸).

The spelling of 138118 in words is "one hundred thirty-eight thousand, one hundred eighteen".