543080381 has 4 divisors (see below), whose sum is σ = 543128700. Its totient is φ = 543032064.

The previous prime is 543080357. The next prime is 543080407. The reversal of 543080381 is 183080345.

It is a happy number.

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 246207481 + 296872900 = 15691^2 + 17230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543080381 is a prime.

It is a super-2 number, since 2×543080381² = 589872600454210322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543085381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525 + ... + 33053.

It is an arithmetic number, because the mean of its divisors is an integer number (135782175).

Almost surely, 2^543080381 is an apocalyptic number.

It is an amenable number.

543080381 is a deficient number, since it is larger than the sum of its proper divisors (48319).

543080381 is a wasteful number, since it uses less digits than its factorization.

543080381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48318.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 543080381 is about 23304.0850710771. The cubic root of 543080381 is about 815.8707649083.

The spelling of 543080381 in words is "five hundred forty-three million, eighty thousand, three hundred eighty-one".