200381 has 2 divisors, whose sum is σ = 200382. Its totient is φ = 200380.

The previous prime is 200371. The next prime is 200383. The reversal of 200381 is 183002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 84100 = 341^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 200381 - 2¹⁰ = 199357 is a prime.

It is a super-2 number, since 2×200381² = 80305090322, which contains 22 as substring.

Together with 200383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100190 + 100191.

It is an arithmetic number, because the mean of its divisors is an integer number (100191).

2²⁰⁰³⁸¹ is an apocalyptic number.

It is an amenable number.

200381 is a deficient number, since it is larger than the sum of its proper divisors (1).

200381 is an equidigital number, since it uses as much as digits as its factorization.

200381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 200381 is about 447.6393637740. The cubic root of 200381 is about 58.5174662337.

Adding to 200381 its reverse (183002), we get a palindrome (383383).

The spelling of 200381 in words is "two hundred thousand, three hundred eighty-one".