540443523 has 8 divisors (see below), whose sum is σ = 724757328. Its totient is φ = 358212704.

The previous prime is 540443483. The next prime is 540443531. The reversal of 540443523 is 325344045.

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 540443523 - 2¹⁶ = 540377987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540443593) 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, 520140 + ... + 521177.

It is an arithmetic number, because the mean of its divisors is an integer number (90594666).

Almost surely, 2^540443523 is an apocalyptic number.

540443523 is a deficient number, since it is larger than the sum of its proper divisors (184313805).

540443523 is a wasteful number, since it uses less digits than its factorization.

540443523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041493.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 540443523 is about 23247.4412140347. The cubic root of 540443523 is about 814.5481696432.

Adding to 540443523 its reverse (325344045), we get a palindrome (865787568).

The spelling of 540443523 in words is "five hundred forty million, four hundred forty-three thousand, five hundred twenty-three".