1118587859 has 2 divisors, whose sum is σ = 1118587860. Its totient is φ = 1118587858.

The previous prime is 1118587837. The next prime is 1118587861. The reversal of 1118587859 is 9587858111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118587859 - 2¹⁶ = 1118522323 is a prime.

Together with 1118587861, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118587859.

It is not a weakly prime, because it can be changed into another prime (1118587829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559293929 + 559293930.

It is an arithmetic number, because the mean of its divisors is an integer number (559293930).

Almost surely, 2^1118587859 is an apocalyptic number.

1118587859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118587859 is an equidigital number, since it uses as much as digits as its factorization.

1118587859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 53.

The square root of 1118587859 is about 33445.2965153547. The cubic root of 1118587859 is about 1038.0621764600.

The spelling of 1118587859 in words is "one billion, one hundred eighteen million, five hundred eighty-seven thousand, eight hundred fifty-nine".