239

Number
$239$ (two hundred and thirty-nine) is:


 * The $52$nd prime number.


 * The $1$st of the $17$th pair of twin primes, with $241$


 * The $17$th Sophie Germain prime after $2, 3, 5, 11, 23, 29, 41, 53, 83, 89, 113, 131, 173, 179, 191, 233$:
 * $2 \times 239 + 1 = 479$, which is prime.


 * The $2$nd of the only two positive integers needing as many as $9$ positive cubes to express it:
 * $239 = 4^3 + 4^3 + 3^3 + 3^3 + 3^3 + 3^3 + 1^3 + 1^3 + 1^3$
 * The other is $23$.

Also see

 * Hilbert-Waring Theorem: Cubes