1109

Number
$1109$ (one thousand, one hundred and nine) is:


 * The $186$th prime number


 * The smaller of the $16$th pair of primes whose prime gap is $8$:
 * $1117 - 1109 = 8$


 * The $43$rd emirp after $13$, $17$, $31$, $37$, $\ldots$, $941$, $953$, $967$, $971$, $983$, $991$, $1009$, $1021$, $1031$, $1033$, $1061$, $1069$, $1091$, $1097$, $1103$