9199

9199 is a prime number (A020457).

9199 is a prime whose digit sum is the perfect number 28 (A048517).

9199 is a prime number with every digit a perfect square (A061246).

9199 and the square of 9199 have the same digit sum (A058370).

9199 is the sum of 15 consecutive primes (A161612).

9199 is 243244 in base 5.

9199 divides 40²¹ - 1.

9199 is a number that cannot be written as a sum of three squares.

Source: OEIS