543645140 has 48 divisors (see below), whose sum is σ = 1184730624. Its totient is φ = 209328000.

The previous prime is 543645127. The next prime is 543645161. The reversal of 543645140 is 41546345.

543645140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 543645097 and 543645106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119915 + ... + 124365.

It is an arithmetic number, because the mean of its divisors is an integer number (24681888).

Almost surely, 2^543645140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543645140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592365312).

543645140 is an abundant number, since it is smaller than the sum of its proper divisors (641085484).

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

543645140 is a wasteful number, since it uses less digits than its factorization.

543645140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 543645140 is about 23316.1990899031. The cubic root of 543645140 is about 816.1534797970.

The spelling of 543645140 in words is "five hundred forty-three million, six hundred forty-five thousand, one hundred forty".