200443381 has 2 divisors, whose sum is σ = 200443382. Its totient is φ = 200443380.

The previous prime is 200443361. The next prime is 200443387. The reversal of 200443381 is 183344002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129732100 + 70711281 = 11390^2 + 8409^2 .

It is a cyclic number.

It is not a de Polignac number, because 200443381 - 2²³ = 192054773 is a prime.

It is a super-2 number, since 2×200443381² = 80355097973422322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200443387) 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, 100221690 + 100221691.

It is an arithmetic number, because the mean of its divisors is an integer number (100221691).

Almost surely, 2^200443381 is an apocalyptic number.

It is an amenable number.

200443381 is a deficient number, since it is larger than the sum of its proper divisors (1).

200443381 is an equidigital number, since it uses as much as digits as its factorization.

200443381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 200443381 is about 14157.8028309480. The cubic root of 200443381 is about 585.2353799921.

Adding to 200443381 its reverse (183344002), we get a palindrome (383787383).

The spelling of 200443381 in words is "two hundred million, four hundred forty-three thousand, three hundred eighty-one".