545420180 has 24 divisors (see below), whose sum is σ = 1212758568. Its totient is φ = 205334528.

The previous prime is 545420179. The next prime is 545420189. The reversal of 545420180 is 81024545.

It can be written as a sum of positive squares in 4 ways, for example, as 22108804 + 523311376 = 4702^2 + 22876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545420189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801749 + ... + 802428.

It is an arithmetic number, because the mean of its divisors is an integer number (50531607).

Almost surely, 2^545420180 is an apocalyptic number.

It is an amenable number.

545420180 is an abundant number, since it is smaller than the sum of its proper divisors (667338388).

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

545420180 is a wasteful number, since it uses less digits than its factorization.

545420180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604203 (or 1604201 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 545420180 is about 23354.2325928299. The cubic root of 545420180 is about 817.0407811583.

The spelling of 545420180 in words is "five hundred forty-five million, four hundred twenty thousand, one hundred eighty".