Fatto generale: 154 is the period in days that the sun follows on gamma-ray flares.
Fatto matematico: 154 is the smallest number which is palindromic in bases 6, 8, and 9.
Trivia: 154 is the period in days that the sun follows on gamma-ray flares.
Data storica: June 2nd is the day in 1955 that the USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948.