241

Number
$241$ (two hundred and forty-one) is:


 * The $53$nd prime number.


 * The $2$nd of the $17$th pair of twin primes, with $241$


 * The $47$th lucky number:
 * $1, 3, 7, 9, 13, 15, 21, \ldots, 193, 195, 201, 205, 211, 219, 223, 231, 235, 237, 241, \ldots$


 * The smaller of the $3$rd pair of primes whose prime gap is $10$:
 * $251 - 241 = 10$