1044561109 has 4 divisors (see below), whose sum is σ = 1044634860. Its totient is φ = 1044487360.

The previous prime is 1044561103. The next prime is 1044561131. The reversal of 1044561109 is 9011654401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 816702084 + 227859025 = 28578^2 + 15095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044561109 - 2³ = 1044561101 is a prime.

It is a super-2 number, since 2×1044561109² = 2182215820870619762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044561101) 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 in 3 ways as a sum of consecutive naturals, for example, 8194 + ... + 46435.

It is an arithmetic number, because the mean of its divisors is an integer number (261158715).

Almost surely, 2^1044561109 is an apocalyptic number.

It is an amenable number.

1044561109 is a deficient number, since it is larger than the sum of its proper divisors (73751).

1044561109 is an equidigital number, since it uses as much as digits as its factorization.

1044561109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73750.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1044561109 is about 32319.6706202276. The cubic root of 1044561109 is about 1014.6383753858.

The spelling of 1044561109 in words is "one billion, forty-four million, five hundred sixty-one thousand, one hundred nine".