544436161 has 4 divisors (see below), whose sum is σ = 545996500. Its totient is φ = 542875824.

The previous prime is 544436159. The next prime is 544436177. The reversal of 544436161 is 161634445.

544436161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 443313025 + 101123136 = 21055^2 + 10056^2 .

It is a cyclic number.

It is not a de Polignac number, because 544436161 - 2¹ = 544436159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544436461) 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, 779646 + ... + 780343.

It is an arithmetic number, because the mean of its divisors is an integer number (136499125).

Almost surely, 2^544436161 is an apocalyptic number.

It is an amenable number.

544436161 is a deficient number, since it is larger than the sum of its proper divisors (1560339).

544436161 is a wasteful number, since it uses less digits than its factorization.

544436161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560338.

The product of its digits is 34560, while the sum is 34.

The square root of 544436161 is about 23333.1558302772. The cubic root of 544436161 is about 816.5491310696.

The spelling of 544436161 in words is "five hundred forty-four million, four hundred thirty-six thousand, one hundred sixty-one".