544144045 has 4 divisors (see below), whose sum is σ = 652972860. Its totient is φ = 435315232.

The previous prime is 544144043. The next prime is 544144049. The reversal of 544144045 is 540441445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 325044841 + 219099204 = 18029^2 + 14802^2 .

It is a cyclic number.

It is not a de Polignac number, because 544144045 - 2¹ = 544144043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 544143998 and 544144016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544144043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54414400 + ... + 54414409.

It is an arithmetic number, because the mean of its divisors is an integer number (163243215).

Almost surely, 2^544144045 is an apocalyptic number.

It is an amenable number.

544144045 is a deficient number, since it is larger than the sum of its proper divisors (108828815).

544144045 is a wasteful number, since it uses less digits than its factorization.

544144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108828814.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 544144045 is about 23326.8953142076. The cubic root of 544144045 is about 816.4030657417.

The spelling of 544144045 in words is "five hundred forty-four million, one hundred forty-four thousand, forty-five".