1118745188 has 36 divisors (see below), whose sum is σ = 2204492556. Its totient is φ = 496108800.

The previous prime is 1118745161. The next prime is 1118745203. The reversal of 1118745188 is 8815478111.

It can be written as a sum of positive squares in 2 ways, for example, as 35545444 + 1083199744 = 5962^2 + 32912^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8345 + ... + 48032.

Almost surely, 2^1118745188 is an apocalyptic number.

It is an amenable number.

1118745188 is a deficient number, since it is larger than the sum of its proper divisors (1085747368).

1118745188 is a wasteful number, since it uses less digits than its factorization.

1118745188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56444 (or 56431 counting only the distinct ones).

The product of its digits is 71680, while the sum is 44.

The square root of 1118745188 is about 33447.6484674185. The cubic root of 1118745188 is about 1038.1108418752.

The spelling of 1118745188 in words is "one billion, one hundred eighteen million, seven hundred forty-five thousand, one hundred eighty-eight".