544901009 has 2 divisors, whose sum is σ = 544901010. Its totient is φ = 544901008.

The previous prime is 544900997. The next prime is 544901047. The reversal of 544901009 is 900109445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455182225 + 89718784 = 21335^2 + 9472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544901009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (544901099) 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, 272450504 + 272450505.

It is an arithmetic number, because the mean of its divisors is an integer number (272450505).

Almost surely, 2^544901009 is an apocalyptic number.

It is an amenable number.

544901009 is a deficient number, since it is larger than the sum of its proper divisors (1).

544901009 is an equidigital number, since it uses as much as digits as its factorization.

544901009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 544901009 is about 23343.1148092966. The cubic root of 544901009 is about 816.7814590454.

The spelling of 544901009 in words is "five hundred forty-four million, nine hundred one thousand, nine".