4042125539 has 2 divisors, whose sum is σ = 4042125540. Its totient is φ = 4042125538.

The previous prime is 4042125463. The next prime is 4042125587. The reversal of 4042125539 is 9355212404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042125539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4042125499 and 4042125508.

It is not a weakly prime, because it can be changed into another prime (4042125739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021062769 + 2021062770.

It is an arithmetic number, because the mean of its divisors is an integer number (2021062770).

Almost surely, 2^4042125539 is an apocalyptic number.

4042125539 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042125539 is an equidigital number, since it uses as much as digits as its factorization.

4042125539 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 35.

The square root of 4042125539 is about 63577.7125964752. The cubic root of 4042125539 is about 1592.9541139506.

The spelling of 4042125539 in words is "four billion, forty-two million, one hundred twenty-five thousand, five hundred thirty-nine".