201843 has 12 divisors (see below), whose sum is σ = 299208. Its totient is φ = 131040.

The previous prime is 201833. The next prime is 201847. The reversal of 201843 is 348102.

It is a happy number.

201843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201843 - 2⁴ = 201827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96 + ... + 642.

It is an arithmetic number, because the mean of its divisors is an integer number (24934).

2²⁰¹⁸⁴³ is an apocalyptic number.

201843 is a deficient number, since it is larger than the sum of its proper divisors (97365).

201843 is a wasteful number, since it uses less digits than its factorization.

201843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 201843 is about 449.2694069264. The cubic root of 201843 is about 58.6594379581.

Adding to 201843 its reverse (348102), we get a palindrome (549945).

The spelling of 201843 in words is "two hundred one thousand, eight hundred forty-three".