540111523153543 has 4 divisors (see below), whose sum is σ = 589212570712968. Its totient is φ = 491010475594120.

The previous prime is 540111523153537. The next prime is 540111523153627. The reversal of 540111523153543 is 345351325111045.

It is a happy number.

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 540111523153543 - 2⁵ = 540111523153511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540111523153543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540111523157543) 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, 24550523779696 + ... + 24550523779717.

It is an arithmetic number, because the mean of its divisors is an integer number (147303142678242).

Almost surely, 2^{540111523153543} is an apocalyptic number.

540111523153543 is a deficient number, since it is larger than the sum of its proper divisors (49101047559425).

540111523153543 is a wasteful number, since it uses less digits than its factorization.

540111523153543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49101047559424.

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 540111523153543 its reverse (345351325111045), we get a palindrome (885462848264588).

The spelling of 540111523153543 in words is "five hundred forty trillion, one hundred eleven billion, five hundred twenty-three million, one hundred fifty-three thousand, five hundred forty-three".