200320949 has 2 divisors, whose sum is σ = 200320950. Its totient is φ = 200320948.

The previous prime is 200320943. The next prime is 200320987. The reversal of 200320949 is 949023002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134142724 + 66178225 = 11582^2 + 8135^2 .

It is a cyclic number.

It is not a de Polignac number, because 200320949 - 2⁸ = 200320693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200320943) 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, 100160474 + 100160475.

It is an arithmetic number, because the mean of its divisors is an integer number (100160475).

Almost surely, 2^200320949 is an apocalyptic number.

It is an amenable number.

200320949 is a deficient number, since it is larger than the sum of its proper divisors (1).

200320949 is an equidigital number, since it uses as much as digits as its factorization.

200320949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 200320949 is about 14153.4783357308. The cubic root of 200320949 is about 585.1162006491.

The spelling of 200320949 in words is "two hundred million, three hundred twenty thousand, nine hundred forty-nine".