543520345 has 8 divisors (see below), whose sum is σ = 690590664. Its totient is φ = 409238784.

The previous prime is 543520339. The next prime is 543520357. The reversal of 543520345 is 543025345.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90554256 + 452966089 = 9516^2 + 21283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 543520345 - 2¹³ = 543512153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197094 + ... + 3197263.

It is an arithmetic number, because the mean of its divisors is an integer number (86323833).

Almost surely, 2^543520345 is an apocalyptic number.

It is an amenable number.

543520345 is a deficient number, since it is larger than the sum of its proper divisors (147070319).

543520345 is a wasteful number, since it uses less digits than its factorization.

543520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394379.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 543520345 is about 23313.5227925768. The cubic root of 543520345 is about 816.0910250446.

Subtracting from 543520345 its product of nonzero digits (36000), we obtain a palindrome (543484345).

The spelling of 543520345 in words is "five hundred forty-three million, five hundred twenty thousand, three hundred forty-five".