When your podcast was accepted you would have been sent an email conaining the URL, which ends with the ID number. Failing that, go to https://podcastsconnect.apple.com and sign in. You will see your podcast in a list (obviously alone if you have only the one): click on the link ad you will see your podcasts page. The ID is at the top of the right-hand column: the URL is at extreme bottom right. Note that you don't actually need the title in the URL. For example, the ful URL of my podcast is
https://podcasts.apple.com/gb/podcast/the-sound-of-78s/id166389425
but
https://podcasts.apple.com/gb/podcast/id166389425
works. You can even lose the country identifier:
https://podcasts.apple.com/podcast/id166389425
As to your not being able to find your podcast in the Search, if you published it only recently it's probably just a question of waiting for a few days, as it takes that for the Search to catch up. If it's been more than, say, a couple of weeks, you could try Podcasts Support: https://itunespartner.apple.com/contact/?content_type=podcasts