544214221 has 4 divisors (see below), whose sum is σ = 545332192. Its totient is φ = 543096252.

The previous prime is 544214213. The next prime is 544214227. The reversal of 544214221 is 122412445.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122412445 = 5 ⋅24482489.

It is a cyclic number.

It is not a de Polignac number, because 544214221 - 2³ = 544214213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544214227) 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, 558255 + ... + 559228.

It is an arithmetic number, because the mean of its divisors is an integer number (136333048).

Almost surely, 2^544214221 is an apocalyptic number.

It is an amenable number.

544214221 is a deficient number, since it is larger than the sum of its proper divisors (1117971).

544214221 is a wasteful number, since it uses less digits than its factorization.

544214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117970.

The product of its digits is 2560, while the sum is 25.

The square root of 544214221 is about 23328.3994521699. The cubic root of 544214221 is about 816.4381602719.

Adding to 544214221 its reverse (122412445), we get a palindrome (666626666).

The spelling of 544214221 in words is "five hundred forty-four million, two hundred fourteen thousand, two hundred twenty-one".