1143343 has 4 divisors (see below), whose sum is σ = 1145520. Its totient is φ = 1141168.

The previous prime is 1143341. The next prime is 1143347. The reversal of 1143343 is 3433411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143343 - 2¹ = 1143341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143341) 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, 243 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (286380).

2^1143343 is an apocalyptic number.

1143343 is a deficient number, since it is larger than the sum of its proper divisors (2177).

1143343 is an equidigital number, since it uses as much as digits as its factorization.

1143343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its digits is 432, while the sum is 19.

The square root of 1143343 is about 1069.2721823745. The cubic root of 1143343 is about 104.5664054477.

Adding to 1143343 its reverse (3433411), we get a palindrome (4576754).

It can be divided in two parts, 11433 and 43, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1143343 in words is "one million, one hundred forty-three thousand, three hundred forty-three".