152

Number
$152$ (one hundred and fifty-two) is:


 * $2^3 \times 19$


 * The $20$th nontotient after $14$, $26$, $34$, $38$, $50$, $62$, $68$, $74$, $76$, $86$, $90$, $94$, $98$, $114$, $118$, $122$, $124$, $134$, $142$, $146$:
 * $\nexists m \in \Z_{>0}: \phi \left({m}\right) = 152$
 * where $\map \phi m$ denotes the Euler $\phi$ function


 * The $9$th of the $17$ positive integers for which the value of the Euler $\phi$ function is $72$:
 * $73$, $91$, $95$, $111$, $117$, $135$, $146$, $148$, $152$, $182$, $190$, $216$, $222$, $228$, $234$, $252$, $270$