540001111 has 4 divisors (see below), whose sum is σ = 581539672. Its totient is φ = 498462552.

The previous prime is 540001057. The next prime is 540001139. The reversal of 540001111 is 111100045.

540001111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 540001111 - 2⁷ = 540000983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 41538547 = 540001111 / (5 + 4 + 0 + 0 + 0 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540001091 and 540001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540001171) 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, 20769261 + ... + 20769286.

It is an arithmetic number, because the mean of its divisors is an integer number (145384918).

Almost surely, 2^540001111 is an apocalyptic number.

540001111 is a deficient number, since it is larger than the sum of its proper divisors (41538561).

540001111 is a wasteful number, since it uses less digits than its factorization.

540001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41538560.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 540001111 is about 23237.9239821461. The cubic root of 540001111 is about 814.3258434444.

Adding to 540001111 its reverse (111100045), we get a palindrome (651101156).

The spelling of 540001111 in words is "five hundred forty million, one thousand, one hundred eleven".