201

201 = 3 x 67.

201ⁿ + 2 is a prime number, for n = 14, 15, and 16.

The square of 201 is one of four square numbers using the same digits: 102² = 10404, 120² = 14400, 201² = 40401, and 210² = 44100.

201 is a Niven (or Harshad) number, which is divisible by the sum of its digits.

201 Penelope is a large asteroid discovered in 1879.

Source: Prime Curios!