11544421 has 8 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 9876048.

The previous prime is 11544409. The next prime is 11544437. The reversal of 11544421 is 12444511.

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

It is not a de Polignac number, because 11544421 - 2¹¹ = 11542373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11544392 and 11544401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544461) 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, 3255 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^11544421 is an apocalyptic number.

It is an amenable number.

11544421 is a deficient number, since it is larger than the sum of its proper divisors (1674779).

11544421 is an equidigital number, since it uses as much as digits as its factorization.

11544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203.

The product of its digits is 640, while the sum is 22.

The square root of 11544421 is about 3397.7081981830. The cubic root of 11544421 is about 226.0081248547.

Adding to 11544421 its reverse (12444511), we get a palindrome (23988932).

The spelling of 11544421 in words is "eleven million, five hundred forty-four thousand, four hundred twenty-one".