540235859 has 4 divisors (see below), whose sum is σ = 540386616. Its totient is φ = 540085104.

The previous prime is 540235849. The next prime is 540235921. The reversal of 540235859 is 958532045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540235859 - 2⁸ = 540235603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540235849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69869 + ... + 77214.

It is an arithmetic number, because the mean of its divisors is an integer number (135096654).

Almost surely, 2^540235859 is an apocalyptic number.

540235859 is a deficient number, since it is larger than the sum of its proper divisors (150757).

540235859 is a wasteful number, since it uses less digits than its factorization.

540235859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150756.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 540235859 is about 23242.9744008808. The cubic root of 540235859 is about 814.4438269482.

The spelling of 540235859 in words is "five hundred forty million, two hundred thirty-five thousand, eight hundred fifty-nine".