41543221 has 4 divisors (see below), whose sum is σ = 43349472. Its totient is φ = 39736972.

The previous prime is 41543197. The next prime is 41543231. The reversal of 41543221 is 12234514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41543221 - 2¹⁷ = 41412149 is a prime.

It is a super-2 number, since 2×41543221² = 3451678422109682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41543192 and 41543201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41543231) 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, 903091 + ... + 903136.

It is an arithmetic number, because the mean of its divisors is an integer number (10837368).

Almost surely, 2^41543221 is an apocalyptic number.

It is an amenable number.

41543221 is a deficient number, since it is larger than the sum of its proper divisors (1806251).

41543221 is a wasteful number, since it uses less digits than its factorization.

41543221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806250.

The product of its digits is 960, while the sum is 22.

The square root of 41543221 is about 6445.4030905755. The cubic root of 41543221 is about 346.3379287262.

Adding to 41543221 its reverse (12234514), we get a palindrome (53777735).

The spelling of 41543221 in words is "forty-one million, five hundred forty-three thousand, two hundred twenty-one".