4520609 has 2 divisors, whose sum is σ = 4520610. Its totient is φ = 4520608.

The previous prime is 4520603. The next prime is 4520611. The reversal of 4520609 is 9060254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3139984 + 1380625 = 1772^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520609 - 2²⁰ = 3472033 is a prime.

Together with 4520611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4520603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260304 + 2260305.

It is an arithmetic number, because the mean of its divisors is an integer number (2260305).

Almost surely, 2^4520609 is an apocalyptic number.

It is an amenable number.

4520609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520609 is an equidigital number, since it uses as much as digits as its factorization.

4520609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4520609 is about 2126.1723824751. The cubic root of 4520609 is about 165.3480135501.

The spelling of 4520609 in words is "four million, five hundred twenty thousand, six hundred nine".