1118484691 has 2 divisors, whose sum is σ = 1118484692. Its totient is φ = 1118484690.

The previous prime is 1118484659. The next prime is 1118484721. The reversal of 1118484691 is 1964848111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118484691 - 2⁵ = 1118484659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118484391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559242345 + 559242346.

It is an arithmetic number, because the mean of its divisors is an integer number (559242346).

Almost surely, 2^1118484691 is an apocalyptic number.

1118484691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118484691 is an equidigital number, since it uses as much as digits as its factorization.

1118484691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 43.

The square root of 1118484691 is about 33443.7541403473. The cubic root of 1118484691 is about 1038.0302617888.

It can be divided in two parts, 1118 and 484691, that added together give a square (485809 = 697²).

The spelling of 1118484691 in words is "one billion, one hundred eighteen million, four hundred eighty-four thousand, six hundred ninety-one".