540322143 has 4 divisors (see below), whose sum is σ = 720429528. Its totient is φ = 360214760.

The previous prime is 540322099. The next prime is 540322151. The reversal of 540322143 is 341223045.

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 540322143 - 2²⁵ = 506767711 is a prime.

It is a super-2 number, since 2×540322143² = 583896036432224898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540322183) 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, 90053688 + ... + 90053693.

It is an arithmetic number, because the mean of its divisors is an integer number (180107382).

Almost surely, 2^540322143 is an apocalyptic number.

540322143 is a deficient number, since it is larger than the sum of its proper divisors (180107385).

540322143 is a wasteful number, since it uses less digits than its factorization.

540322143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180107384.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 540322143 is about 23244.8304575447. The cubic root of 540322143 is about 814.4871843874.

Adding to 540322143 its reverse (341223045), we get a palindrome (881545188).

The spelling of 540322143 in words is "five hundred forty million, three hundred twenty-two thousand, one hundred forty-three".