1118835589 has 2 divisors, whose sum is σ = 1118835590. Its totient is φ = 1118835588.

The previous prime is 1118835581. The next prime is 1118835607. The reversal of 1118835589 is 9855388111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101111489 + 17724100 = 33183^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118835589 - 2³ = 1118835581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118835581) 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, 559417794 + 559417795.

It is an arithmetic number, because the mean of its divisors is an integer number (559417795).

Almost surely, 2^1118835589 is an apocalyptic number.

It is an amenable number.

1118835589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118835589 is an equidigital number, since it uses as much as digits as its factorization.

1118835589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 49.

The square root of 1118835589 is about 33448.9998206224. Note that the first 3 decimals coincide. The cubic root of 1118835589 is about 1038.1388028836.

It can be divided in two parts, 11 and 18835589, that added together give a square (18835600 = 4340²).

The spelling of 1118835589 in words is "one billion, one hundred eighteen million, eight hundred thirty-five thousand, five hundred eighty-nine".