543621313 has 4 divisors (see below), whose sum is σ = 543669700. Its totient is φ = 543572928.

The previous prime is 543621283. The next prime is 543621329. The reversal of 543621313 is 313126345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 211179024 + 332442289 = 14532^2 + 18233^2 .

It is a cyclic number.

It is not a de Polignac number, because 543621313 - 2²⁵ = 510066881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543621413) 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, 2413 + ... + 33061.

It is an arithmetic number, because the mean of its divisors is an integer number (135917425).

Almost surely, 2^543621313 is an apocalyptic number.

It is an amenable number.

543621313 is a deficient number, since it is larger than the sum of its proper divisors (48387).

543621313 is a wasteful number, since it uses less digits than its factorization.

543621313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48386.

The product of its digits is 6480, while the sum is 28.

The square root of 543621313 is about 23315.6881305271. The cubic root of 543621313 is about 816.1415561041.

Adding to 543621313 its reverse (313126345), we get a palindrome (856747658).

The spelling of 543621313 in words is "five hundred forty-three million, six hundred twenty-one thousand, three hundred thirteen".