540631533122 has 6 divisors (see below), whose sum is σ = 810948859443. Its totient is φ = 270315246642.

The previous prime is 540631533121. The next prime is 540631533137. The reversal of 540631533122 is 221335136045.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 270315766561 + 270315766561 = 519919^2 + 519919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=519919.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540631533121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 779879 + ... + 1299797.

Almost surely, 2^540631533122 is an apocalyptic number.

540631533122 is a deficient number, since it is larger than the sum of its proper divisors (270317326321).

540631533122 is an frugal number, since it uses more digits than its factorization.

540631533122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039840 (or 519921 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 540631533122 its reverse (221335136045), we get a palindrome (761966669167).

The spelling of 540631533122 in words is "five hundred forty billion, six hundred thirty-one million, five hundred thirty-three thousand, one hundred twenty-two".