1143143 has 2 divisors, whose sum is σ = 1143144. Its totient is φ = 1143142.

The previous prime is 1143113. The next prime is 1143161. The reversal of 1143143 is 3413411.

It is a strong prime.

It is an emirp because it is prime and its reverse (3413411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143143 - 2¹⁴ = 1126759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143113) 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, 571571 + 571572.

It is an arithmetic number, because the mean of its divisors is an integer number (571572).

2^1143143 is an apocalyptic number.

1143143 is the 572-nd centered heptagonal number.

1143143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143143 is an equidigital number, since it uses as much as digits as its factorization.

1143143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 1143143 is about 1069.1786567267. The cubic root of 1143143 is about 104.5603079772.

Adding to 1143143 its reverse (3413411), we get a palindrome (4556554).

The spelling of 1143143 in words is "one million, one hundred forty-three thousand, one hundred forty-three".