543481 has 4 divisors (see below), whose sum is σ = 548964. Its totient is φ = 538000.

The previous prime is 543463. The next prime is 543497. The reversal of 543481 is 184345.

543481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 164025 = 616^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 543481 - 2⁷ = 543353 is a prime.

It is a super-2 number, since 2×543481² = 590743194722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543281) 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, 2590 + ... + 2791.

It is an arithmetic number, because the mean of its divisors is an integer number (137241).

2⁵⁴³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

543481 is a deficient number, since it is larger than the sum of its proper divisors (5483).

543481 is a wasteful number, since it uses less digits than its factorization.

543481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482.

The product of its digits is 1920, while the sum is 25.

The square root of 543481 is about 737.2116385408. The cubic root of 543481 is about 81.6071332512.

It can be divided in two parts, 543 and 481, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 543481 in words is "five hundred forty-three thousand, four hundred eighty-one".