106138 has 4 divisors (see below), whose sum is σ = 159210. Its totient is φ = 53068.

The previous prime is 106129. The next prime is 106163. The reversal of 106138 is 831601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831601 = 557 ⋅1493.

It can be written as a sum of positive squares in only one way, i.e., 59049 + 47089 = 243^2 + 217^2 .

It is a super-2 number, since 2×106138² = 22530550088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26533 + ... + 26536.

2¹⁰⁶¹³⁸ is an apocalyptic number.

106138 is a deficient number, since it is larger than the sum of its proper divisors (53072).

106138 is an equidigital number, since it uses as much as digits as its factorization.

106138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53071.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 106138 is about 325.7882748044. The cubic root of 106138 is about 47.3467638055.

Adding to 106138 its reverse (831601), we get a palindrome (937739).

The spelling of 106138 in words is "one hundred six thousand, one hundred thirty-eight".