4061569 has 2 divisors, whose sum is σ = 4061570. Its totient is φ = 4061568.

The previous prime is 4061567. The next prime is 4061579. The reversal of 4061569 is 9651604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3564544 + 497025 = 1888^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 4061569 - 2¹ = 4061567 is a prime.

It is a super-2 number, since 2×4061569² = 32992685483522, which contains 22 as substring.

Together with 4061567, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4061569.

It is not a weakly prime, because it can be changed into another prime (4061567) 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, 2030784 + 2030785.

It is an arithmetic number, because the mean of its divisors is an integer number (2030785).

Almost surely, 2^4061569 is an apocalyptic number.

It is an amenable number.

4061569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4061569 is an equidigital number, since it uses as much as digits as its factorization.

4061569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4061569 is about 2015.3334711655. Note that the first 3 decimals coincide. The cubic root of 4061569 is about 159.5504175936.

The spelling of 4061569 in words is "four million, sixty-one thousand, five hundred sixty-nine".