201443 has 4 divisors (see below), whose sum is σ = 219768. Its totient is φ = 183120.

The previous prime is 201437. The next prime is 201449. The reversal of 201443 is 344102.

201443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201437) and next prime (201449).

It is a cyclic number.

It is not a de Polignac number, because 201443 - 2¹² = 197347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9146 + ... + 9167.

It is an arithmetic number, because the mean of its divisors is an integer number (54942).

2²⁰¹⁴⁴³ is an apocalyptic number.

201443 is a deficient number, since it is larger than the sum of its proper divisors (18325).

201443 is a wasteful number, since it uses less digits than its factorization.

201443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 201443 is about 448.8240189651. The cubic root of 201443 is about 58.6206631150.

Adding to 201443 its reverse (344102), we get a palindrome (545545).

The spelling of 201443 in words is "two hundred one thousand, four hundred forty-three", and thus it is an iban number.