1089

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 4 (2 unique) factors are:
3² = 9
11² = 121

Its 9 divisors are:
1
3
9
11
33
99
121
363
1089
Its aliquote sum is:
640
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:с CYRILLIC SMALL LETTER ES in Cyrillic (Source: https://ucdapi.org/unicode/latest/codepoint/dec/1089); HTML: с

In the work of Johann Sebastian Bach BWV 1089 is Da Jesus an dem Kreuze stund

The number appears at position 2534 of the decimal digits of π surrounded by
10965960940252288797108931456691368672287489 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 909.728ms; cpu: 93.3270000000004ms)