199280503 has 2 divisors, whose sum is σ = 199280504. Its totient is φ = 199280502.

The previous prime is 199280491. The next prime is 199280507. The reversal of 199280503 is 305082991.

It is a strong prime.

It is an emirp because it is prime and its reverse (305082991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199280503 - 2²¹ = 197183351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199280507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99640251 + 99640252.

It is an arithmetic number, because the mean of its divisors is an integer number (99640252).

Almost surely, 2^199280503 is an apocalyptic number.

199280503 is a deficient number, since it is larger than the sum of its proper divisors (1).

199280503 is an equidigital number, since it uses as much as digits as its factorization.

199280503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 199280503 is about 14116.6746438388. The cubic root of 199280503 is about 584.1014310201.

The spelling of 199280503 in words is "one hundred ninety-nine million, two hundred eighty thousand, five hundred three".