1116692609 has 2 divisors, whose sum is σ = 1116692610. Its totient is φ = 1116692608.

The previous prime is 1116692579. The next prime is 1116692611. The reversal of 1116692609 is 9062966111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097464384 + 19228225 = 33128^2 + 4385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116692609 - 2¹² = 1116688513 is a prime.

Together with 1116692611, 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 (1116692699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558346304 + 558346305.

It is an arithmetic number, because the mean of its divisors is an integer number (558346305).

Almost surely, 2^1116692609 is an apocalyptic number.

It is an amenable number.

1116692609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116692609 is an equidigital number, since it uses as much as digits as its factorization.

1116692609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1116692609 is about 33416.9509231468. The cubic root of 1116692609 is about 1037.4755738963.

The spelling of 1116692609 in words is "one billion, one hundred sixteen million, six hundred ninety-two thousand, six hundred nine".