2104544549 has 2 divisors, whose sum is σ = 2104544550. Its totient is φ = 2104544548.

The previous prime is 2104544509. The next prime is 2104544567. The reversal of 2104544549 is 9454454012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1253655649 + 850888900 = 35407^2 + 29170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2104544549 is a prime.

It is a super-2 number, since 2×2104544549² = 8858215517451226802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104544509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052272274 + 1052272275.

It is an arithmetic number, because the mean of its divisors is an integer number (1052272275).

Almost surely, 2^2104544549 is an apocalyptic number.

It is an amenable number.

2104544549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104544549 is an equidigital number, since it uses as much as digits as its factorization.

2104544549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 2104544549 is about 45875.3152468732. The cubic root of 2104544549 is about 1281.5022541549.

The spelling of 2104544549 in words is "two billion, one hundred four million, five hundred forty-four thousand, five hundred forty-nine".