545811144 has 16 divisors (see below), whose sum is σ = 1364527920. Its totient is φ = 181937040.

The previous prime is 545811139. The next prime is 545811179. The reversal of 545811144 is 441118545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11371042 + ... + 11371089.

It is an arithmetic number, because the mean of its divisors is an integer number (85282995).

Almost surely, 2^545811144 is an apocalyptic number.

It is an amenable number.

545811144 is an abundant number, since it is smaller than the sum of its proper divisors (818716776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545811144 is a wasteful number, since it uses less digits than its factorization.

545811144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22742140 (or 22742136 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 545811144 is about 23362.6013962487. The cubic root of 545811144 is about 817.2359562113.

Adding to 545811144 its reverse (441118545), we get a palindrome (986929689).

The spelling of 545811144 in words is "five hundred forty-five million, eight hundred eleven thousand, one hundred forty-four".