200143 has 4 divisors (see below), whose sum is σ = 201168. Its totient is φ = 199120.

The previous prime is 200131. The next prime is 200153. The reversal of 200143 is 341002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200143 is a prime.

It is a Duffinian number.

200143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200153) 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 in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (50292).

2²⁰⁰¹⁴³ is an apocalyptic number.

200143 is a deficient number, since it is larger than the sum of its proper divisors (1025).

200143 is an equidigital number, since it uses as much as digits as its factorization.

200143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 200143 is about 447.3734457922. The cubic root of 200143 is about 58.4942892616.

Adding to 200143 its reverse (341002), we get a palindrome (541145).

It can be divided in two parts, 200 and 143, that added together give a palindrome (343).

The spelling of 200143 in words is "two hundred thousand, one hundred forty-three", and thus it is an iban number.