543431 has 8 divisors (see below), whose sum is σ = 642720. Its totient is φ = 449568.

The previous prime is 543427. The next prime is 543463. The reversal of 543431 is 134345.

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

It is not a de Polignac number, because 543431 - 2² = 543427 is a prime.

It is a super-2 number, since 2×543431² = 590634503522, which contains 22 as substring.

It is a Duffinian 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 (543131) 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, 1136 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (80340).

2⁵⁴³⁴³¹ is an apocalyptic number.

543431 is a deficient number, since it is larger than the sum of its proper divisors (99289).

543431 is a wasteful number, since it uses less digits than its factorization.

543431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713.

The product of its digits is 720, while the sum is 20.

The square root of 543431 is about 737.1777261963. The cubic root of 543431 is about 81.6046305683.

Adding to 543431 its reverse (134345), we get a palindrome (677776).

The spelling of 543431 in words is "five hundred forty-three thousand, four hundred thirty-one".