11061569 has 2 divisors, whose sum is σ = 11061570. Its totient is φ = 11061568.

The previous prime is 11061559. The next prime is 11061571. The reversal of 11061569 is 96516011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 3841600 = 2687^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 11061569 - 2¹⁶ = 10996033 is a prime.

It is a super-2 number, since 2×11061569² = 244716617483522, which contains 22 as substring.

Together with 11061571, 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 (11061539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530784 + 5530785.

It is an arithmetic number, because the mean of its divisors is an integer number (5530785).

Almost surely, 2^11061569 is an apocalyptic number.

It is an amenable number.

11061569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061569 is an equidigital number, since it uses as much as digits as its factorization.

11061569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 11061569 is about 3325.8937144774. The cubic root of 11061569 is about 222.8121713324.

The spelling of 11061569 in words is "eleven million, sixty-one thousand, five hundred sixty-nine".