543381 has 8 divisors (see below), whose sum is σ = 762720. Its totient is φ = 343152.

The previous prime is 543379. The next prime is 543383. The reversal of 543381 is 183345.

It is an interprime number because it is at equal distance from previous prime (543379) and next prime (543383).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 543381 - 2¹ = 543379 is a prime.

It is a super-2 number, since 2×543381² = 590525822322, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710 + ... + 4823.

It is an arithmetic number, because the mean of its divisors is an integer number (95340).

2⁵⁴³³⁸¹ is an apocalyptic number.

It is an amenable number.

543381 is a deficient number, since it is larger than the sum of its proper divisors (219339).

543381 is a wasteful number, since it uses less digits than its factorization.

543381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555.

The product of its digits is 1440, while the sum is 24.

The square root of 543381 is about 737.1438122917. The cubic root of 543381 is about 81.6021277319.

The spelling of 543381 in words is "five hundred forty-three thousand, three hundred eighty-one".