4539569 has 2 divisors, whose sum is σ = 4539570. Its totient is φ = 4539568.

The previous prime is 4539551. The next prime is 4539571. The reversal of 4539569 is 9659354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 150544 = 2095^2 + 388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4539569 is a prime.

It is a super-2 number, since 2×4539569² = 41215373411522, which contains 22 as substring.

Together with 4539571, 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 (4539169) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269784 + 2269785.

It is an arithmetic number, because the mean of its divisors is an integer number (2269785).

Almost surely, 2^4539569 is an apocalyptic number.

It is an amenable number.

4539569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4539569 is an equidigital number, since it uses as much as digits as its factorization.

4539569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 41.

The square root of 4539569 is about 2130.6264337044. The cubic root of 4539569 is about 165.5788545468.

The spelling of 4539569 in words is "four million, five hundred thirty-nine thousand, five hundred sixty-nine".