545043305231 has 16 divisors (see below), whose sum is σ = 582018447840. Its totient is φ = 508907473920.

The previous prime is 545043305227. The next prime is 545043305237. The reversal of 545043305231 is 132503340545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 545043305231 - 2² = 545043305227 is a prime.

It is a super-2 number, since 2×545043305231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545043305191 and 545043305200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545043305237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743341 + ... + 2032073.

It is an arithmetic number, because the mean of its divisors is an integer number (36376152990).

Almost surely, 2^545043305231 is an apocalyptic number.

545043305231 is a deficient number, since it is larger than the sum of its proper divisors (36975142609).

545043305231 is a wasteful number, since it uses less digits than its factorization.

545043305231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290186.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 545043305231 its reverse (132503340545), we get a palindrome (677546645776).

The spelling of 545043305231 in words is "five hundred forty-five billion, forty-three million, three hundred five thousand, two hundred thirty-one".