1004505109 has 2 divisors, whose sum is σ = 1004505110. Its totient is φ = 1004505108.

The previous prime is 1004505107. The next prime is 1004505113. The reversal of 1004505109 is 9015054001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581051025 + 423454084 = 24105^2 + 20578^2 .

It is an emirp because it is prime and its reverse (9015054001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004505109 - 2¹ = 1004505107 is a prime.

Together with 1004505107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004505107) 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, 502252554 + 502252555.

It is an arithmetic number, because the mean of its divisors is an integer number (502252555).

Almost surely, 2^1004505109 is an apocalyptic number.

It is an amenable number.

1004505109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004505109 is an equidigital number, since it uses as much as digits as its factorization.

1004505109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1004505109 is about 31693.9285826166. The cubic root of 1004505109 is about 1001.4994535154.

The spelling of 1004505109 in words is "one billion, four million, five hundred five thousand, one hundred nine".