A short answer: NO.
Hebrew language is not structured on numbers.
Read more on Hebrew language origon and history in the following link:
http://en.wikipedia.org/wiki/Hebrew_language.
You probably asking about "Gematria".
Gematria is numerology of the Hebrew language and Hebrew alphabet, and is used by its proponents to derive meaning or relative relationship.
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Concise Oxford English Dictionary
gematria■ noun a Kabbalistic method of interpreting the Hebrew scriptures by computing the numerical value of words, based on the values of their constituent letters.
© Oxford University Press, 2004
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Read more about "Gematria" here:
http://en.wikipedia.org/wiki/Gematria == No natural language is 'structured by numbers'.