541538869 has 2 divisors, whose sum is σ = 541538870. Its totient is φ = 541538868.

The previous prime is 541538849. The next prime is 541538891. The reversal of 541538869 is 968835145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523814769 + 17724100 = 22887^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 541538869 - 2¹³ = 541530677 is a prime.

It is a super-2 number, since 2×541538869² = 586528693275598322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541538849) 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, 270769434 + 270769435.

It is an arithmetic number, because the mean of its divisors is an integer number (270769435).

Almost surely, 2^541538869 is an apocalyptic number.

It is an amenable number.

541538869 is a deficient number, since it is larger than the sum of its proper divisors (1).

541538869 is an equidigital number, since it uses as much as digits as its factorization.

541538869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 49.

The square root of 541538869 is about 23270.9877100221. The cubic root of 541538869 is about 815.0980945071.

The spelling of 541538869 in words is "five hundred forty-one million, five hundred thirty-eight thousand, eight hundred sixty-nine".