167

Number
$167$ (one hundred and sixty-seven) is:


 * The $39$th prime number


 * The $13$th emirp after $13, 17, 31, 37, 71, 73, 79, 97, 107, 113, 149, 157$


 * The $3$rd of the $2$nd ordered triple of consecutive integers after $\left({105, 106, 107}\right)$ that have Euler $\phi$ values which are strictly increasing:
 * $\phi \left({165}\right) = 80$, $\phi \left({166}\right) = 82$, $\phi \left({167}\right) = 166$