The number 173 is an odd integer that follows 172 and precedes 174. It is classified as a prime number, meaning it has no positive divisors other than 1 and itself. In mathematics, prime numbers are significant because they serve as the building blocks for other numbers through multiplication. In the context of science, 173 can be associated with various fields, such as chemistry, where it may represent isotopes or specific measurements. Additionally, in numerology, the number 173 can be analyzed for its symbolic meanings, often reflecting themes of independence and creativity.