If you are experiencing problems with your wireless router, then you might start tweaking the settings in order to improve performance, like choosing a different channel. Here is the answer of SuperUser contributor Mokubai (from HowToGeek) for the questions in your mind:
Channel numbers do not denote power levels, so channel 11 is not better than channel 1 simply because it is ten digits higher. Wi-Fi does have overlapping channels though, which means that devices do not want to be on a channel that is too close to another nearby stations channel.
For the best results and interoperability (least interference), there are only three channel choices: channel 1, channel 6, and channel 11. Here is an image showing why:
If there are many networks near your ********, then you want to choose the channel which has the fewest or weakest signals. If, as you mention, that happens to be channel 1, then that is the channel you should use.
Source: HowToGeek
Note: The censored word is l o c a t i o n
