Uranus has an unusually large axial tilt of 98 degrees compared to Earth's 23 degrees, which is believed to have been caused by one or more giant impacts early in the planet's history that knocked it sideways. A tilt axis of 175 degrees would mean the planet is almost upside down, with the actual tilt being 5 degrees from completely upside down at 180 degrees.

1. Why Uranus spin is tilted 98°?
The angle between the spin axis and the line perpendicular to
the ecliptic plane is tilt axis of the planet
Fact: Planet Uranus got sideways tilt From multiple Impacts
If a planet Is having the tilt axis of 175° then the planet is almost upside down
Then the actual tilt is 180°-175° which is equal to 5° (completely upside down)