540142219 has 4 divisors (see below), whose sum is σ = 541552896. Its totient is φ = 538731544.

The previous prime is 540142193. The next prime is 540142237. The reversal of 540142219 is 912241045.

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 540142219 - 2²⁵ = 506587787 is a prime.

It is a super-2 number, since 2×540142219² = 583507233492487922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540142259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704764 + ... + 705529.

It is an arithmetic number, because the mean of its divisors is an integer number (135388224).

Almost surely, 2^540142219 is an apocalyptic number.

540142219 is a deficient number, since it is larger than the sum of its proper divisors (1410677).

540142219 is a wasteful number, since it uses less digits than its factorization.

540142219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410676.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 540142219 is about 23240.9599414482. The cubic root of 540142219 is about 814.3967679180.

The spelling of 540142219 in words is "five hundred forty million, one hundred forty-two thousand, two hundred nineteen".