540235541 has 2 divisors, whose sum is σ = 540235542. Its totient is φ = 540235540.

The previous prime is 540235517. The next prime is 540235561. The reversal of 540235541 is 145532045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513928900 + 26306641 = 22670^2 + 5129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540235541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540235511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270117770 + 270117771.

It is an arithmetic number, because the mean of its divisors is an integer number (270117771).

Almost surely, 2^540235541 is an apocalyptic number.

It is an amenable number.

540235541 is a deficient number, since it is larger than the sum of its proper divisors (1).

540235541 is an equidigital number, since it uses as much as digits as its factorization.

540235541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 540235541 is about 23242.9675601030. The cubic root of 540235541 is about 814.4436671456.

Adding to 540235541 its reverse (145532045), we get a palindrome (685767586).

The spelling of 540235541 in words is "five hundred forty million, two hundred thirty-five thousand, five hundred forty-one".