540504243 has 12 divisors (see below), whose sum is σ = 781196520. Its totient is φ = 360120096.

The previous prime is 540504221. The next prime is 540504257. The reversal of 540504243 is 342405045.

It is not a de Polignac number, because 540504243 - 2⁶ = 540504179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540502243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1353 + ... + 32906.

It is an arithmetic number, because the mean of its divisors is an integer number (65099710).

Almost surely, 2^540504243 is an apocalyptic number.

540504243 is a deficient number, since it is larger than the sum of its proper divisors (240692277).

540504243 is a wasteful number, since it uses less digits than its factorization.

540504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36018 (or 36015 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 540504243 is about 23248.7471275336. The cubic root of 540504243 is about 814.5786739177.

Adding to 540504243 its reverse (342405045), we get a palindrome (882909288).

The spelling of 540504243 in words is "five hundred forty million, five hundred four thousand, two hundred forty-three".