1118228867 has 4 divisors (see below), whose sum is σ = 1277975856. Its totient is φ = 958481880.

The previous prime is 1118228851. The next prime is 1118228887. The reversal of 1118228867 is 7688228111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1118228867 - 2⁴ = 1118228851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118228887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79873484 + ... + 79873497.

It is an arithmetic number, because the mean of its divisors is an integer number (319493964).

Almost surely, 2^1118228867 is an apocalyptic number.

1118228867 is a deficient number, since it is larger than the sum of its proper divisors (159746989).

1118228867 is an equidigital number, since it uses as much as digits as its factorization.

1118228867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159746988.

The product of its digits is 86016, while the sum is 44.

The square root of 1118228867 is about 33439.9292313844. The cubic root of 1118228867 is about 1037.9511150335.

The spelling of 1118228867 in words is "one billion, one hundred eighteen million, two hundred twenty-eight thousand, eight hundred sixty-seven".