4523569 has 2 divisors, whose sum is σ = 4523570. Its totient is φ = 4523568.

The previous prime is 4523567. The next prime is 4523579. The reversal of 4523569 is 9653254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 113569 = 2100^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 4523569 - 2¹ = 4523567 is a prime.

It is a super-2 number, since 2×4523569² = 40925352995522, which contains 22 as substring.

Together with 4523567, it forms a pair of twin primes.

It is an Ulam number.

4523569 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4523567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261784 + 2261785.

It is an arithmetic number, because the mean of its divisors is an integer number (2261785).

Almost surely, 2^4523569 is an apocalyptic number.

It is an amenable number.

4523569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4523569 is an equidigital number, since it uses as much as digits as its factorization.

4523569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 4523569 is about 2126.8683551174. The cubic root of 4523569 is about 165.3840944805.

The spelling of 4523569 in words is "four million, five hundred twenty-three thousand, five hundred sixty-nine".