112138 has 16 divisors (see below), whose sum is σ = 191520. Its totient is φ = 48816.

The previous prime is 112129. The next prime is 112139. The reversal of 112138 is 831211.

It is an Ulam number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (112139) 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, 381 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2¹¹²¹³⁸ is an apocalyptic number.

112138 is a deficient number, since it is larger than the sum of its proper divisors (79382).

112138 is a wasteful number, since it uses less digits than its factorization.

112138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its digits is 48, while the sum is 16.

The square root of 112138 is about 334.8701240780. The cubic root of 112138 is about 48.2226347551. Note that the first 3 decimals are identical.

Adding to 112138 its reverse (831211), we get a palindrome (943349).

The spelling of 112138 in words is "one hundred twelve thousand, one hundred thirty-eight".