544325161 has 4 divisors (see below), whose sum is σ = 547978500. Its totient is φ = 540671824.

The previous prime is 544325149. The next prime is 544325191. The reversal of 544325161 is 161523445.

It is a happy number.

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 17347225 + 526977936 = 4165^2 + 22956^2 .

It is a cyclic number.

It is not a de Polignac number, because 544325161 - 2²¹ = 542228009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544325141) 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, 1826446 + ... + 1826743.

It is an arithmetic number, because the mean of its divisors is an integer number (136994625).

Almost surely, 2^544325161 is an apocalyptic number.

It is an amenable number.

544325161 is a deficient number, since it is larger than the sum of its proper divisors (3653339).

544325161 is a wasteful number, since it uses less digits than its factorization.

544325161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653338.

The product of its digits is 14400, while the sum is 31.

The square root of 544325161 is about 23330.7771195046. Note that the first 3 decimals coincide. The cubic root of 544325161 is about 816.4936344412.

The spelling of 544325161 in words is "five hundred forty-four million, three hundred twenty-five thousand, one hundred sixty-one".