543242345 has 4 divisors (see below), whose sum is σ = 651890820. Its totient is φ = 434593872.

The previous prime is 543242341. The next prime is 543242347.

543242345 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 312688489 + 230553856 = 17683^2 + 15184^2 .

It is a cyclic number.

It is not a de Polignac number, because 543242345 - 2² = 543242341 is a prime.

It is a super-2 number, since 2×543242345² = 590224490802198050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (543242341) 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 3 ways as a sum of consecutive naturals, for example, 54324230 + ... + 54324239.

It is an arithmetic number, because the mean of its divisors is an integer number (162972705).

Almost surely, 2^543242345 is an apocalyptic number.

It is an amenable number.

543242345 is a deficient number, since it is larger than the sum of its proper divisors (108648475).

543242345 is a wasteful number, since it uses less digits than its factorization.

543242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108648474.

The product of its digits is 57600, while the sum is 32.

The square root of 543242345 is about 23307.5598250868. The cubic root of 543242345 is about 815.9518631294.

The spelling of 543242345 in words is "five hundred forty-three million, two hundred forty-two thousand, three hundred forty-five".