540529321 has 2 divisors, whose sum is σ = 540529322. Its totient is φ = 540529320.

The previous prime is 540529313. The next prime is 540529369. The reversal of 540529321 is 123925045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326199721 + 214329600 = 18061^2 + 14640^2 .

It is a cyclic number.

It is not a de Polignac number, because 540529321 - 2³ = 540529313 is a prime.

It is not a weakly prime, because it can be changed into another prime (540589321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270264660 + 270264661.

It is an arithmetic number, because the mean of its divisors is an integer number (270264661).

Almost surely, 2^540529321 is an apocalyptic number.

It is an amenable number.

540529321 is a deficient number, since it is larger than the sum of its proper divisors (1).

540529321 is an equidigital number, since it uses as much as digits as its factorization.

540529321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 540529321 is about 23249.2864621691. The cubic root of 540529321 is about 814.5912718380.

The spelling of 540529321 in words is "five hundred forty million, five hundred twenty-nine thousand, three hundred twenty-one".