Number Gossip

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Unique Properties of 149

  • 149 is the smallest number whose square starts with 3 identical digits: 1492 = 22201
  • 149 is the smallest prime which retains the end (unit) digit of its predecessor (139)
  • 149 is the smallest number that is the sum of proper substrings of its reverse: 149 = 1 + 4 + 9 + 94 + 41

Common Properties of 149

Deficient
Evil
Odd
Prime
Square-free
Twin