4542220841 has 2 divisors, whose sum is σ = 4542220842. Its totient is φ = 4542220840.

The previous prime is 4542220789. The next prime is 4542220867. The reversal of 4542220841 is 1480222454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4542220816 + 25 = 67396^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 4542220841 - 2³⁰ = 3468479017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4542220798 and 4542220807.

It is not a weakly prime, because it can be changed into another prime (4542229841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271110420 + 2271110421.

It is an arithmetic number, because the mean of its divisors is an integer number (2271110421).

Almost surely, 2^4542220841 is an apocalyptic number.

It is an amenable number.

4542220841 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542220841 is an equidigital number, since it uses as much as digits as its factorization.

4542220841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 4542220841 is about 67396.0001854709. Note that the first 3 decimals coincide. The cubic root of 4542220841 is about 1656.1108986280.

The spelling of 4542220841 in words is "four billion, five hundred forty-two million, two hundred twenty thousand, eight hundred forty-one".