544404121 has 4 divisors (see below), whose sum is σ = 544469200. Its totient is φ = 544339044.

The previous prime is 544404103. The next prime is 544404127. The reversal of 544404121 is 121404445.

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: 121404445 = 5 ⋅24280889.

It is a cyclic number.

It is not a de Polignac number, because 544404121 - 2¹¹ = 544402073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544404127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17751 + ... + 37468.

It is an arithmetic number, because the mean of its divisors is an integer number (136117300).

Almost surely, 2^544404121 is an apocalyptic number.

It is an amenable number.

544404121 is a deficient number, since it is larger than the sum of its proper divisors (65079).

544404121 is an equidigital number, since it uses as much as digits as its factorization.

544404121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65078.

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

The square root of 544404121 is about 23332.4692435241. The cubic root of 544404121 is about 816.5331128173.

Adding to 544404121 its reverse (121404445), we get a palindrome (665808566).

The spelling of 544404121 in words is "five hundred forty-four million, four hundred four thousand, one hundred twenty-one".