3137

Number
$3137$ (three thousand, one hundred and thirty-seven) is:


 * The $446$th prime number


 * The $13$th two-sided prime after $2$, $3$, $5$, $7$, $23$, $37$, $53$, $73$, $313$, $317$, $373$, $797$:
 * $3137$ is prime; $313$, $31$, $3$ are prime; $137$, $37$, $7$ are prime


 * The $14$th prime number of the form $n^2 + 1$ after $2$, $5$, $17$, $37$, $101$, $197$, $257$, $401$, $577$, $677$, $1297$, $1601$, $2917$:
 * $3137 = 56^2 + 1$