545223143204 has 12 divisors (see below), whose sum is σ = 977412220428. Its totient is φ = 265962508800.

The previous prime is 545223143177. The next prime is 545223143207. The reversal of 545223143204 is 402341322545.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9621648100 + 535601495104 = 98090^2 + 731848^2 .

It is not an unprimeable number, because it can be changed into a prime (545223143207) 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, 1662265517 + ... + 1662265844.

It is an arithmetic number, because the mean of its divisors is an integer number (81451018369).

Almost surely, 2^545223143204 is an apocalyptic number.

It is an amenable number.

545223143204 is a deficient number, since it is larger than the sum of its proper divisors (432189077224).

545223143204 is a wasteful number, since it uses less digits than its factorization.

545223143204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324531406 (or 3324531404 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 545223143204 its reverse (402341322545), we get a palindrome (947564465749).

The spelling of 545223143204 in words is "five hundred forty-five billion, two hundred twenty-three million, one hundred forty-three thousand, two hundred four".