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 $\phi \left({m}\right)$ denotes the Euler $\phi$ function


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