542819443 has 2 divisors, whose sum is σ = 542819444. Its totient is φ = 542819442.

The previous prime is 542819441. The next prime is 542819509. The reversal of 542819443 is 344918245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542819443 - 2¹ = 542819441 is a prime.

Together with 542819441, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 542819396 and 542819405.

It is not a weakly prime, because it can be changed into another prime (542819441) 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, 271409721 + 271409722.

It is an arithmetic number, because the mean of its divisors is an integer number (271409722).

Almost surely, 2^542819443 is an apocalyptic number.

542819443 is a deficient number, since it is larger than the sum of its proper divisors (1).

542819443 is an equidigital number, since it uses as much as digits as its factorization.

542819443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 542819443 is about 23298.4858520892. The cubic root of 542819443 is about 815.7400747448.

The spelling of 542819443 in words is "five hundred forty-two million, eight hundred nineteen thousand, four hundred forty-three".