Number Gossip

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Unique Properties of 190

  • 190 is the largest number with only distinct prime Roman numeral palindrome factors that is itself a Roman numeral palindrome (190 = CXC = II * V * XIX)
  • 190 is the smallest non-palindrome that shares the number of totatives with its reversal
  • 190 is the smallest anagrasum integer: its set of digits is the same as the set of digits that is formed by sums of pairs of its adjacent digits
  • 190 is the smallest multiple of 10 such that its digit sum is also a multiple of 10

Common Properties of 190

Composite
Deficient
Even
Evil
Happy
Square-free
Triangular