200543881 has 2 divisors, whose sum is σ = 200543882. Its totient is φ = 200543880.

The previous prime is 200543857. The next prime is 200543887. The reversal of 200543881 is 188345002.

200543881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192793225 + 7750656 = 13885^2 + 2784^2 .

It is a cyclic number.

It is not a de Polignac number, because 200543881 - 2⁷ = 200543753 is a prime.

It is a super-2 number, since 2×200543881² = 80435696413084322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200543887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100271940 + 100271941.

It is an arithmetic number, because the mean of its divisors is an integer number (100271941).

Almost surely, 2^200543881 is an apocalyptic number.

It is an amenable number.

200543881 is a deficient number, since it is larger than the sum of its proper divisors (1).

200543881 is an equidigital number, since it uses as much as digits as its factorization.

200543881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 200543881 is about 14161.3516657133. The cubic root of 200543881 is about 585.3331737402. Note that the first 3 decimals are identical.

Adding to 200543881 its reverse (188345002), we get a palindrome (388888883).

The spelling of 200543881 in words is "two hundred million, five hundred forty-three thousand, eight hundred eighty-one".