541542643 has 2 divisors, whose sum is σ = 541542644. Its totient is φ = 541542642.

The previous prime is 541542641. The next prime is 541542647. The reversal of 541542643 is 346245145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541542643 - 2¹ = 541542641 is a prime.

Together with 541542641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 541542599 and 541542608.

It is not a weakly prime, because it can be changed into another prime (541542641) 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, 270771321 + 270771322.

It is an arithmetic number, because the mean of its divisors is an integer number (270771322).

Almost surely, 2^541542643 is an apocalyptic number.

541542643 is a deficient number, since it is larger than the sum of its proper divisors (1).

541542643 is an equidigital number, since it uses as much as digits as its factorization.

541542643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 34.

The square root of 541542643 is about 23271.0687979732. The cubic root of 541542643 is about 815.0999879834.

Adding to 541542643 its reverse (346245145), we get a palindrome (887787788).

The spelling of 541542643 in words is "five hundred forty-one million, five hundred forty-two thousand, six hundred forty-three".