543261243 has 32 divisors (see below), whose sum is σ = 879923200. Its totient is φ = 291218976.

The previous prime is 543261239. The next prime is 543261283. The reversal of 543261243 is 342162345.

It is not a de Polignac number, because 543261243 - 2² = 543261239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 543261243.

It is not an unprimeable number, because it can be changed into a prime (543261223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34488 + ... + 47706.

It is an arithmetic number, because the mean of its divisors is an integer number (27497600).

Almost surely, 2^543261243 is an apocalyptic number.

543261243 is a deficient number, since it is larger than the sum of its proper divisors (336661957).

543261243 is a wasteful number, since it uses less digits than its factorization.

543261243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13351.

The product of its digits is 17280, while the sum is 30.

The square root of 543261243 is about 23307.9652265057. The cubic root of 543261243 is about 815.9613246400.

The spelling of 543261243 in words is "five hundred forty-three million, two hundred sixty-one thousand, two hundred forty-three".