1141543 has 4 divisors (see below), whose sum is σ = 1229368. Its totient is φ = 1053720.

The previous prime is 1141541. The next prime is 1141571. The reversal of 1141543 is 3451411.

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 1141543 - 2¹ = 1141541 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 1141543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141541) 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, 43893 + ... + 43918.

It is an arithmetic number, because the mean of its divisors is an integer number (307342).

2^1141543 is an apocalyptic number.

1141543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1141543 is a deficient number, since it is larger than the sum of its proper divisors (87825).

1141543 is an equidigital number, since it uses as much as digits as its factorization.

1141543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87824.

The product of its digits is 240, while the sum is 19.

The square root of 1141543 is about 1068.4301568189. The cubic root of 1141543 is about 104.5115025913.

Adding to 1141543 its reverse (3451411), we get a palindrome (4592954).

The spelling of 1141543 in words is "one million, one hundred forty-one thousand, five hundred forty-three".