10543481 has 4 divisors (see below), whose sum is σ = 11354532. Its totient is φ = 9732432.

The previous prime is 10543433. The next prime is 10543487. The reversal of 10543481 is 18434501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18434501 = 317 ⋅58153.

It can be written as a sum of positive squares in 2 ways, for example, as 1301881 + 9241600 = 1141^2 + 3040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10543481 is a prime.

It is a super-2 number, since 2×10543481² = 222329983194722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10543481.

It is not an unprimeable number, because it can be changed into a prime (10543487) 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, 405506 + ... + 405531.

It is an arithmetic number, because the mean of its divisors is an integer number (2838633).

Almost surely, 2^10543481 is an apocalyptic number.

It is an amenable number.

10543481 is a deficient number, since it is larger than the sum of its proper divisors (811051).

10543481 is an equidigital number, since it uses as much as digits as its factorization.

10543481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811050.

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

The square root of 10543481 is about 3247.0726816627. The cubic root of 10543481 is about 219.2778040112.

Adding to 10543481 its reverse (18434501), we get a palindrome (28977982).

The spelling of 10543481 in words is "ten million, five hundred forty-three thousand, four hundred eighty-one".