Riddle: Which Number in the English Language?

[Froggie]

Has the same amount of letters in its name and its meaning

Thanks in advance for all answers, have a nice day/night

 

[bluedevs_98]

Well if you take the 1st three pathagorian tripples ... 3 9 14 18

Then divide by the nearest whole integer prime values 1 11 123 etc.

And take PI ^ 2 and the constant of relativity and multiplied by the 1st three terms in the taylor series you end up with: 4