4520539 has 2 divisors, whose sum is σ = 4520540. Its totient is φ = 4520538.

The previous prime is 4520533. The next prime is 4520543. The reversal of 4520539 is 9350254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4520539 - 2³ = 4520531 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4520531) 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, 2260269 + 2260270.

It is an arithmetic number, because the mean of its divisors is an integer number (2260270).

Almost surely, 2^4520539 is an apocalyptic number.

4520539 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520539 is an equidigital number, since it uses as much as digits as its factorization.

4520539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 4520539 is about 2126.1559209051. The cubic root of 4520539 is about 165.3471600942.

The spelling of 4520539 in words is "four million, five hundred twenty thousand, five hundred thirty-nine".