845

Number
$845$ (eight hundred and forty-five) is:


 * $5 \times 13^2$


 * The $5$th positive integer after $325$, $425$, $650$, $725$ which can be expressed as the sum of two square numbers in $3$ distinct ways:
 * $845 = 29^2 + 2^2 = 26^2 + 13^2 = 22^2 + 19^2$