541636489 has 2 divisors, whose sum is σ = 541636490. Its totient is φ = 541636488.

The previous prime is 541636441. The next prime is 541636517. The reversal of 541636489 is 984636145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534303225 + 7333264 = 23115^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 541636489 - 2⁹ = 541635977 is a prime.

It is not a weakly prime, because it can be changed into another prime (541633489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270818244 + 270818245.

It is an arithmetic number, because the mean of its divisors is an integer number (270818245).

Almost surely, 2^541636489 is an apocalyptic number.

It is an amenable number.

541636489 is a deficient number, since it is larger than the sum of its proper divisors (1).

541636489 is an equidigital number, since it uses as much as digits as its factorization.

541636489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 541636489 is about 23273.0850769725. The cubic root of 541636489 is about 815.1470691975.

It can be divided in two parts, 5416 and 36489, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 541636489 in words is "five hundred forty-one million, six hundred thirty-six thousand, four hundred eighty-nine".