540124511 has 4 divisors (see below), whose sum is σ = 543246792. Its totient is φ = 537002232.

The previous prime is 540124499. The next prime is 540124513. The reversal of 540124511 is 115421045.

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 540124511 - 2¹⁰ = 540123487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540124513) 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, 1560881 + ... + 1561226.

It is an arithmetic number, because the mean of its divisors is an integer number (135811698).

Almost surely, 2^540124511 is an apocalyptic number.

540124511 is a deficient number, since it is larger than the sum of its proper divisors (3122281).

540124511 is a wasteful number, since it uses less digits than its factorization.

540124511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122280.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 540124511 is about 23240.5789729946. The cubic root of 540124511 is about 814.3878681042.

Adding to 540124511 its reverse (115421045), we get a palindrome (655545556).

The spelling of 540124511 in words is "five hundred forty million, one hundred twenty-four thousand, five hundred eleven".