540541314521 has 32 divisors (see below), whose sum is σ = 629968969728. Its totient is φ = 459348986880.

The previous prime is 540541314499. The next prime is 540541314553. The reversal of 540541314521 is 125413145045.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-540541314521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540541314581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1857131 + ... + 2128383.

It is an arithmetic number, because the mean of its divisors is an integer number (19686530304).

Almost surely, 2^540541314521 is an apocalyptic number.

It is an amenable number.

540541314521 is a deficient number, since it is larger than the sum of its proper divisors (89427655207).

540541314521 is a wasteful number, since it uses less digits than its factorization.

540541314521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271481.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 540541314521 its reverse (125413145045), we get a palindrome (665954459566).

The spelling of 540541314521 in words is "five hundred forty billion, five hundred forty-one million, three hundred fourteen thousand, five hundred twenty-one".