540022013 has 2 divisors, whose sum is σ = 540022014. Its totient is φ = 540022012.

The previous prime is 540022001. The next prime is 540022019. The reversal of 540022013 is 310220045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421604089 + 118417924 = 20533^2 + 10882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540022013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540021982 and 540022000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540022019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270011006 + 270011007.

It is an arithmetic number, because the mean of its divisors is an integer number (270011007).

Almost surely, 2^540022013 is an apocalyptic number.

It is an amenable number.

540022013 is a deficient number, since it is larger than the sum of its proper divisors (1).

540022013 is an equidigital number, since it uses as much as digits as its factorization.

540022013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 540022013 is about 23238.3737167643. The cubic root of 540022013 is about 814.3363501013.

Adding to 540022013 its reverse (310220045), we get a palindrome (850242058).

The spelling of 540022013 in words is "five hundred forty million, twenty-two thousand, thirteen".