I think these theories are based on the Jewish Kabbalah, and there are a few books around on this. Numerology was popular amoung Jews and early Christians, and parts of the bible are thought to be in code. For example, the number of the devil is 666. In early hebrew versions of the bible, it is actually 696, which is the code/number attributed to the emperor Caligula (I think,

) who was persecuting Christians at the time.
If you're interested in this, you'll probably like the film 'Pi'
