1118315186 has 12 divisors (see below), whose sum is σ = 1770408702. Its totient is φ = 529727904.

The previous prime is 1118315183. The next prime is 1118315213. The reversal of 1118315186 is 6815138111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 988788025 + 129527161 = 31445^2 + 11381^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1118315183) 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 in 5 ways as a sum of consecutive naturals, for example, 773735 + ... + 775178.

Almost surely, 2^1118315186 is an apocalyptic number.

1118315186 is a deficient number, since it is larger than the sum of its proper divisors (652093516).

1118315186 is a wasteful number, since it uses less digits than its factorization.

1118315186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548953 (or 1548934 counting only the distinct ones).

The product of its digits is 5760, while the sum is 35.

The square root of 1118315186 is about 33441.2198641138. The cubic root of 1118315186 is about 1037.9778217300.

The spelling of 1118315186 in words is "one billion, one hundred eighteen million, three hundred fifteen thousand, one hundred eighty-six".