11543
11543 is a five-digit integer. It is an odd number, as its last digit is 3. In terms of divisibility, 11543 is a prime number. This means it is only divisible by 1 and itself. It cannot be evenly divided by any other positive integer. The sum of its digits is 1 + 1 + 5 + 4 + 3, which equals 14. This sum, 14, is an even number. 11543 falls between the integers 11542 and 11544. In Roman numerals, it would be written as XMCXLIII. Its presence in common mathematical sequences or notable historical events is not widely documented.