13044561 has 8 divisors (see below), whose sum is σ = 17419584. Its totient is φ = 8682960.

The previous prime is 13044557. The next prime is 13044569. The reversal of 13044561 is 16544031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13044561 - 2² = 13044557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13044569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810 + ... + 5171.

It is an arithmetic number, because the mean of its divisors is an integer number (2177448).

Almost surely, 2^13044561 is an apocalyptic number.

It is an amenable number.

13044561 is a deficient number, since it is larger than the sum of its proper divisors (4375023).

13044561 is an equidigital number, since it uses as much as digits as its factorization.

13044561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13044561 is about 3611.7254879074. The cubic root of 13044561 is about 235.4018234757.

Adding to 13044561 its reverse (16544031), we get a palindrome (29588592).

The spelling of 13044561 in words is "thirteen million, forty-four thousand, five hundred sixty-one".