CXLIX is the Roman numeral representation for the number 149. In the Roman numeral system, "C" stands for 100, "L" represents 50, and "IX" signifies 9. When combined, these values add up to 149, making CXLIX a way to express this number in ancient Roman culture. The use of Roman numerals, such as CXLIX, dates back to ancient Rome and is still seen today in various contexts, including clock faces, book chapters, and movie titles. Understanding Roman numerals can enhance one's appreciation of history and the evolution of numerical systems, including the modern Arabic numeral system.