Output blog post id number

Beside my title in a blog I am building I would like to out put the ID number automatically. For example when you create a post in the admin panel you get https://www.jamesreilly.eu/adm…pps/perch_blog/edit/?id=3

Is there a way to take the ID=3 and output the number in the post ?

Doesn't seem to pick it up.

ellimondo cheers that worked. Exactly what I needed. Cheers.