540330121 has 2 divisors, whose sum is σ = 540330122. Its totient is φ = 540330120.

The previous prime is 540330107. The next prime is 540330127. The reversal of 540330121 is 121033045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458174025 + 82156096 = 21405^2 + 9064^2 .

It is a cyclic number.

It is not a de Polignac number, because 540330121 - 2¹¹ = 540328073 is a prime.

It is not a weakly prime, because it can be changed into another prime (540330127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270165060 + 270165061.

It is an arithmetic number, because the mean of its divisors is an integer number (270165061).

Almost surely, 2^540330121 is an apocalyptic number.

It is an amenable number.

540330121 is a deficient number, since it is larger than the sum of its proper divisors (1).

540330121 is an equidigital number, since it uses as much as digits as its factorization.

540330121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 540330121 is about 23245.0020649601. The cubic root of 540330121 is about 814.4911930742.

Adding to 540330121 its reverse (121033045), we get a palindrome (661363166).

The spelling of 540330121 in words is "five hundred forty million, three hundred thirty thousand, one hundred twenty-one".