10443581 has 2 divisors, whose sum is σ = 10443582. Its totient is φ = 10443580.

The previous prime is 10443569. The next prime is 10443619. The reversal of 10443581 is 18534401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 4268356 = 2485^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 10443581 - 2¹⁰ = 10442557 is a prime.

It is a super-2 number, since 2×10443581² = 218136768207122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10443581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10443551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5221790 + 5221791.

It is an arithmetic number, because the mean of its divisors is an integer number (5221791).

Almost surely, 2^10443581 is an apocalyptic number.

It is an amenable number.

10443581 is a deficient number, since it is larger than the sum of its proper divisors (1).

10443581 is an equidigital number, since it uses as much as digits as its factorization.

10443581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 10443581 is about 3231.6529826081. The cubic root of 10443581 is about 218.5830491046.

Adding to 10443581 its reverse (18534401), we get a palindrome (28977982).

The spelling of 10443581 in words is "ten million, four hundred forty-three thousand, five hundred eighty-one".