540113551 has 8 divisors (see below), whose sum is σ = 572633600. Its totient is φ = 508002840.

The previous prime is 540113549. The next prime is 540113591. The reversal of 540113551 is 155311045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540113551 - 2¹ = 540113549 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 (540113501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99615 + ... + 104896.

It is an arithmetic number, because the mean of its divisors is an integer number (71579200).

Almost surely, 2^540113551 is an apocalyptic number.

540113551 is a deficient number, since it is larger than the sum of its proper divisors (32520049).

540113551 is a wasteful number, since it uses less digits than its factorization.

540113551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204669.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 540113551 is about 23240.3431773285. The cubic root of 540113551 is about 814.3823596512.

Adding to 540113551 its reverse (155311045), we get a palindrome (695424596).

The spelling of 540113551 in words is "five hundred forty million, one hundred thirteen thousand, five hundred fifty-one".