203299049 has 2 divisors, whose sum is σ = 203299050. Its totient is φ = 203299048.

The previous prime is 203299021. The next prime is 203299067. The reversal of 203299049 is 940992302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103938025 + 99361024 = 10195^2 + 9968^2 .

It is a cyclic number.

It is not a de Polignac number, because 203299049 - 2⁸ = 203298793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (203299009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101649524 + 101649525.

It is an arithmetic number, because the mean of its divisors is an integer number (101649525).

Almost surely, 2^203299049 is an apocalyptic number.

It is an amenable number.

203299049 is a deficient number, since it is larger than the sum of its proper divisors (1).

203299049 is an equidigital number, since it uses as much as digits as its factorization.

203299049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 203299049 is about 14258.2975491466. The cubic root of 203299049 is about 588.0015203888.

The spelling of 203299049 in words is "two hundred three million, two hundred ninety-nine thousand, forty-nine".