543280538 has 4 divisors (see below), whose sum is σ = 814920810. Its totient is φ = 271640268.

The previous prime is 543280537. The next prime is 543280541. The reversal of 543280538 is 835082345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835082345 = 5 ⋅167016469.

It can be written as a sum of positive squares in only one way, i.e., 506835169 + 36445369 = 22513^2 + 6037^2 .

It is not an unprimeable number, because it can be changed into a prime (543280531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135820133 + ... + 135820136.

Almost surely, 2^543280538 is an apocalyptic number.

543280538 is a deficient number, since it is larger than the sum of its proper divisors (271640272).

543280538 is a wasteful number, since it uses less digits than its factorization.

543280538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271640271.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 543280538 is about 23308.3791371258. The cubic root of 543280538 is about 815.9709846869.

The spelling of 543280538 in words is "five hundred forty-three million, two hundred eighty thousand, five hundred thirty-eight".