That's a private IP LAN address. Many people have that address. It's not your WAN, public or Internet IP address.
Go to
WhatIsMyIP.com to find that. Rebooting your modem usually changes it. This will be the IP address your internet provider assigns.
DHCP and NAT allow many computers to share an address going out, but not coming in. This statement is not 100% correct, but it's close enough. In order to use the public address to access a computer on your LAN you must forward a particular port/service to a particular LAN address. If a LAN address is set to to be a DMZ (Demiliterized zone) in your router all incoming traffic goes to that computer.