141

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Number

$141$ (one hundred and forty-one) is:

$3 \times 47$

The index of the $2$nd Cullen prime after $1$:

$141 \times 2^{141} + 1$

The $8$th palindromic lucky number:

$1$, $3$, $7$, $9$, $33$, $99$, $111$, $141$, $\ldots$

The $27$th positive integer $n$ such that no factorial of an integer can end with $n$ zeroes.

The $30$th lucky number:

$1$, $3$, $7$, $9$, $13$, $15$, $21$, $\ldots$, $105$, $111$, $115$, $127$, $129$, $133$, $135$, $141$, $\ldots$

The $58$th positive integer after $2$, $3$, $4$, $7$, $8$, $\ldots$, $95$, $96$, $100$, $101$, $102$, $107$, $112$, $116$, $124$, $136$, $137$ which cannot be expressed as the sum of distinct pentagonal numbers.

Also see

• Previous  ... Next: Cullen Prime

• Previous  ... Next: Sequence of Palindromic Lucky Numbers

• Previous  ... Next: Lucky Number
• Previous  ... Next: Numbers of Zeroes that Factorial does not end with

• Previous  ... Next: Numbers not Expressible as Sum of Distinct Pentagonal Numbers

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $141$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $141$