545184540 has 48 divisors (see below), whose sum is σ = 1696131360. Its totient is φ = 145382400.

The previous prime is 545184533. The next prime is 545184547. The reversal of 545184540 is 45481545.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (545184533) and next prime (545184547).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 545184495 and 545184504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545184547) 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, 504261 + ... + 505340.

It is an arithmetic number, because the mean of its divisors is an integer number (35336070).

Almost surely, 2^545184540 is an apocalyptic number.

It is an amenable number.

545184540 is an abundant number, since it is smaller than the sum of its proper divisors (1150946820).

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

545184540 is a wasteful number, since it uses less digits than its factorization.

545184540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009619 (or 1009611 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 545184540 is about 23349.1871378855. The cubic root of 545184540 is about 816.9231011081.

The spelling of 545184540 in words is "five hundred forty-five million, one hundred eighty-four thousand, five hundred forty".