1381

Number
$1381$ (one thousand three hundred and eighty-one) is:


 * The $221$st prime number


 * The larger of the $19$th pair of primes whose prime gap is $8$:
 * $1381 - 1373 = 8$


 * The $27$th of $29$ primes of the form $2 x^2 + 29$:
 * $2 \times 26^2 + 29 = 1381$