138 (number)

The number 138 is an integer that follows 137 and precedes 139. It can be expressed in various contexts: 1. **Mathematics**: It is an even composite number, as it has divisors other than 1 and itself (for example, 2, 3, 6, 23, 46, and 69). It can be expressed as a product of primes: \(138 = 2 \times 3 \times 23\).