2041543 has 4 divisors (see below), whose sum is σ = 2333200. Its totient is φ = 1749888.

The previous prime is 2041537. The next prime is 2041553. The reversal of 2041543 is 3451402.

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

It is not a de Polignac number, because 2041543 - 2¹⁷ = 1910471 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 2041543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145818 + ... + 145831.

It is an arithmetic number, because the mean of its divisors is an integer number (583300).

2^2041543 is an apocalyptic number.

2041543 is a deficient number, since it is larger than the sum of its proper divisors (291657).

2041543 is an equidigital number, since it uses as much as digits as its factorization.

2041543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291656.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2041543 is about 1428.8257416494. The cubic root of 2041543 is about 126.8584820804.

Adding to 2041543 its reverse (3451402), we get a palindrome (5492945).

The spelling of 2041543 in words is "two million, forty-one thousand, five hundred forty-three".