539032321 has 2 divisors, whose sum is σ = 539032322. Its totient is φ = 539032320.

The previous prime is 539032303. The next prime is 539032343. The reversal of 539032321 is 123230935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381655296 + 157377025 = 19536^2 + 12545^2 .

It is a cyclic number.

It is not a de Polignac number, because 539032321 - 2¹¹ = 539030273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 539032321.

It is not a weakly prime, because it can be changed into another prime (539032421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269516160 + 269516161.

It is an arithmetic number, because the mean of its divisors is an integer number (269516161).

Almost surely, 2^539032321 is an apocalyptic number.

It is an amenable number.

539032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

539032321 is an equidigital number, since it uses as much as digits as its factorization.

539032321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 539032321 is about 23217.0696040650. The cubic root of 539032321 is about 813.8385709982.

The spelling of 539032321 in words is "five hundred thirty-nine million, thirty-two thousand, three hundred twenty-one".