541566043 has 2 divisors, whose sum is σ = 541566044. Its totient is φ = 541566042.

The previous prime is 541566041. The next prime is 541566071. The reversal of 541566043 is 340665145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541566043 - 2¹ = 541566041 is a prime.

Together with 541566041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (541566041) 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, 270783021 + 270783022.

It is an arithmetic number, because the mean of its divisors is an integer number (270783022).

Almost surely, 2^541566043 is an apocalyptic number.

541566043 is a deficient number, since it is larger than the sum of its proper divisors (1).

541566043 is an equidigital number, since it uses as much as digits as its factorization.

541566043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 541566043 is about 23271.5715627458. The cubic root of 541566043 is about 815.1117279423. Note that the first 3 decimals are identical.

The spelling of 541566043 in words is "five hundred forty-one million, five hundred sixty-six thousand, forty-three".