1136

1136 is a natural number that comes after 1135 and before 1137. In mathematics, it is an even composite integer with prime factorization 2^4 × 71. Its positive divisors are 1, 2, 4, 8, 16, 71, 142, 284, 568, and 1136. With 10 divisors, it has a Euler totient φ(1136) of 560. The number is not prime and represents an example of a number with a small set of prime factors.

In calendar terms, 1136 refers to the year 1136 CE in the Julian calendar, which was a leap year. It lies in the High Middle Ages, a period of feudal monarchies and Crusading movements across Europe, the Levant, and parts of Asia.

Beyond chronology, 1136 is used as a label in historical scholarship and data systems to denote events, documents, or artifacts dated to that year. As with other year-designations, it serves as a reference point for organizing historical timelines and scholarly references.