12,285

Number
$12 \, 285$ (twelve thousand, two hundred and eighty-five) is:


 * $3^3 \times 5 \times 7 \times 13$


 * The smaller of the $1$st odd amicable pair, with $14 \, 595$:
 * $\sigma \left({12 \, 285}\right) = \sigma \left({14 \, 595}\right) = 26 \, 880 = 12 \, 285 + 14 \, 595$