375

375 is a natural number that follows 374 and precedes 376. Its prime factorization is 3 × 5^3, making it a composite, odd integer. The divisors are 1, 3, 5, 15, 25, 75, 125, and 375. The digit sum is 15, so 375 is divisible by 3 and 5, a Harshad (Niven) number in base 10.

In Roman numerals, 375 is written as CCCLXXV.

Historically, 375 can denote a year in two eras: 375 CE (AD) and 375 BCE. In 375 CE, the late antique period was characterized by Roman state dynamics and migratory movements of various peoples in Europe and the Near East; 375 BCE lies within the later classical or Hellenistic era, a time of Greek and Macedonian influence in the eastern Mediterranean.

In international telecommunications, 375 is the country calling code for Belarus, used with the international dialing prefix to reach Belarusian numbers (for example, +375).

In firearms nomenclature, 0.375 inches describes a common bullet diameter used in calibers such as the .375 H&H Magnum and the .375 Winchester. The 375 designation indicates the approximate bullet diameter rather than a single standardized cartridge, and it is associated with large‑game hunting cartridges.