3751

Number
$3751$ (three thousand, seven hundred and fifty-one) is:
 * $11^2 \times 31$


 * The $17$th Fermat pseudoprime to base $3$ after $91$, $121$, $286$, $671$, $703$, $949$, $1105$, $1541$, $1729$, $1891$, $2465$, $2665$, $2701$, $2821$, $3281$, $3367$:
 * $3^{3751} \equiv 3 \pmod {3751}$


 * The $27$th trimorphic number after $1$, $4$, $5$, $6$, $9$, $\ldots$, $501$, $624$, $625$, $749$, $751$, $875$, $999$, $1249$:
 * $3751^3 = 52 \, 776 \, 57 \mathbf {3 \, 751}$