540543531 has 8 divisors (see below), whose sum is σ = 786245184. Its totient is φ = 327602120.

The previous prime is 540543529. The next prime is 540543533. The reversal of 540543531 is 135345045.

It is an interprime number because it is at equal distance from previous prime (540543529) and next prime (540543533).

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 540543531 - 2¹ = 540543529 is a prime.

It is a super-2 number, since 2×540543531² = 584374617811895922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540543533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8190021 + ... + 8190086.

It is an arithmetic number, because the mean of its divisors is an integer number (98280648).

Almost surely, 2^540543531 is an apocalyptic number.

540543531 is a deficient number, since it is larger than the sum of its proper divisors (245701653).

540543531 is a wasteful number, since it uses less digits than its factorization.

540543531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16380121.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 540543531 is about 23249.5920609373. The cubic root of 540543531 is about 814.5984100511.

Adding to 540543531 its reverse (135345045), we get a palindrome (675888576).

The spelling of 540543531 in words is "five hundred forty million, five hundred forty-three thousand, five hundred thirty-one".