543214321 has 8 divisors (see below), whose sum is σ = 585593960. Its totient is φ = 500919552.

The previous prime is 543214319. The next prime is 543214327. The reversal of 543214321 is 123412345.

It can be written as a sum of positive squares in 4 ways, for example, as 35343025 + 507871296 = 5945^2 + 22536^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 543214321 - 2¹ = 543214319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543214327) 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, 7590 + ... + 33823.

It is an arithmetic number, because the mean of its divisors is an integer number (73199245).

Almost surely, 2^543214321 is an apocalyptic number.

It is an amenable number.

543214321 is a deficient number, since it is larger than the sum of its proper divisors (42379639).

543214321 is a wasteful number, since it uses less digits than its factorization.

543214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42435.

The product of its digits is 2880, while the sum is 25.

The square root of 543214321 is about 23306.9586389988. The cubic root of 543214321 is about 815.9378321735.

Adding to 543214321 its reverse (123412345), we get a palindrome (666626666).

The spelling of 543214321 in words is "five hundred forty-three million, two hundred fourteen thousand, three hundred twenty-one".