1009573105 has 4 divisors (see below), whose sum is σ = 1211487732. Its totient is φ = 807658480.

The previous prime is 1009573091. The next prime is 1009573121. The reversal of 1009573105 is 5013759001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 744143841 + 265429264 = 27279^2 + 16292^2 .

It is not a de Polignac number, because 1009573105 - 2²³ = 1001184497 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 100957306 + ... + 100957315.

It is an arithmetic number, because the mean of its divisors is an integer number (302871933).

Almost surely, 2^1009573105 is an apocalyptic number.

It is an amenable number.

1009573105 is a deficient number, since it is larger than the sum of its proper divisors (201914627).

1009573105 is an equidigital number, since it uses as much as digits as its factorization.

1009573105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201914626.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 1009573105 is about 31773.7801496769. The cubic root of 1009573105 is about 1003.1809061080.

The spelling of 1009573105 in words is "one billion, nine million, five hundred seventy-three thousand, one hundred five".