1116563729 has 2 divisors, whose sum is σ = 1116563730. Its totient is φ = 1116563728.

The previous prime is 1116563719. The next prime is 1116563737. The reversal of 1116563729 is 9273656111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990046225 + 126517504 = 31465^2 + 11248^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116563729 - 2¹⁶ = 1116498193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1116563719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558281864 + 558281865.

It is an arithmetic number, because the mean of its divisors is an integer number (558281865).

Almost surely, 2^1116563729 is an apocalyptic number.

It is an amenable number.

1116563729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116563729 is an equidigital number, since it uses as much as digits as its factorization.

1116563729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 1116563729 is about 33415.0225048555. The cubic root of 1116563729 is about 1037.4356598994.

The spelling of 1116563729 in words is "one billion, one hundred sixteen million, five hundred sixty-three thousand, seven hundred twenty-nine".