13441561 has 4 divisors (see below), whose sum is σ = 15361792. Its totient is φ = 11521332.

The previous prime is 13441523. The next prime is 13441583. The reversal of 13441561 is 16514431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13441561 - 2⁷ = 13441433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13441501) 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 3 ways as a sum of consecutive naturals, for example, 960105 + ... + 960118.

It is an arithmetic number, because the mean of its divisors is an integer number (3840448).

Almost surely, 2^13441561 is an apocalyptic number.

It is an amenable number.

13441561 is a deficient number, since it is larger than the sum of its proper divisors (1920231).

13441561 is an equidigital number, since it uses as much as digits as its factorization.

13441561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920230.

The product of its digits is 1440, while the sum is 25.

The square root of 13441561 is about 3666.2734486124. The cubic root of 13441561 is about 237.7660825778.

Adding to 13441561 its reverse (16514431), we get a palindrome (29955992).

The spelling of 13441561 in words is "thirteen million, four hundred forty-one thousand, five hundred sixty-one".