find a specific character in an input string and getting the string after if

Hello,

my requirement is as such, lets say we have an input string ABHISHEK #1234, or BOMBAY 123 #235,

i need to find if the character string has # in it,, if yes pick all the numbers after # .

in the above example, i need output as 1234 and 235

and if any non numeric values after # set a flag

please help me in this.

regards

Abhishek