1116569 has 2 divisors, whose sum is σ = 1116570. Its totient is φ = 1116568.

The previous prime is 1116547. The next prime is 1116571. The reversal of 1116569 is 9656111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 34969 = 1040^2 + 187^2 .

It is an emirp because it is prime and its reverse (9656111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1116569 - 2²⁰ = 67993 is a prime.

It is a super-4 number, since 4×1116569⁴ (a number of 25 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 1116571, 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 (1116469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558284 + 558285.

It is an arithmetic number, because the mean of its divisors is an integer number (558285).

2^1116569 is an apocalyptic number.

It is an amenable number.

1116569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116569 is an equidigital number, since it uses as much as digits as its factorization.

1116569 is an evil number, because the sum of its binary digits is even.

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

The square root of 1116569 is about 1056.6782859508. The cubic root of 1116569 is about 103.7437292383.

The spelling of 1116569 in words is "one million, one hundred sixteen thousand, five hundred sixty-nine".