539742043 has 2 divisors, whose sum is σ = 539742044. Its totient is φ = 539742042.

The previous prime is 539742041. The next prime is 539742053. The reversal of 539742043 is 340247935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 539742043 - 2¹ = 539742041 is a prime.

Together with 539742041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 539741993 and 539742011.

It is not a weakly prime, because it can be changed into another prime (539742041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269871021 + 269871022.

It is an arithmetic number, because the mean of its divisors is an integer number (269871022).

Almost surely, 2^539742043 is an apocalyptic number.

539742043 is a deficient number, since it is larger than the sum of its proper divisors (1).

539742043 is an equidigital number, since it uses as much as digits as its factorization.

539742043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 539742043 is about 23232.3490633212. The cubic root of 539742043 is about 814.1955970989.

Adding to 539742043 its reverse (340247935), we get a palindrome (879989978).

The spelling of 539742043 in words is "five hundred thirty-nine million, seven hundred forty-two thousand, forty-three".