200381281 has 2 divisors, whose sum is σ = 200381282. Its totient is φ = 200381280.

The previous prime is 200381249. The next prime is 200381297. The reversal of 200381281 is 182183002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120099681 + 80281600 = 10959^2 + 8960^2 .

It is a cyclic number.

It is not a de Polignac number, because 200381281 - 2⁵ = 200381249 is a prime.

It is a super-2 number, since 2×200381281² = 80305315550401922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200381231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100190640 + 100190641.

It is an arithmetic number, because the mean of its divisors is an integer number (100190641).

Almost surely, 2^200381281 is an apocalyptic number.

It is an amenable number.

200381281 is a deficient number, since it is larger than the sum of its proper divisors (1).

200381281 is an equidigital number, since it uses as much as digits as its factorization.

200381281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 200381281 is about 14155.6095241427. The cubic root of 200381281 is about 585.1749358727.

The spelling of 200381281 in words is "two hundred million, three hundred eighty-one thousand, two hundred eighty-one".