Number Gossip

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Unique Properties of 1225

  • 1225 is the smallest (except the trivial 1) triangular, square and hexagonal number
  • 1225 is the smallest square triangular number that can be expressed as sums of a positive square number and a positive triangular number

Rare Properties of 1225

Square

Common Properties of 1225

Composite
Deficient
Odd
Odious
Powerful
Triangular