1128813736 has 16 divisors (see below), whose sum is σ = 2241027540. Its totient is φ = 531206400.

The previous prime is 1128813691. The next prime is 1128813737. The reversal of 1128813736 is 6373188211.

It can be written as a sum of positive squares in 2 ways, for example, as 1113556900 + 15256836 = 33370^2 + 3906^2 .

It is not an unprimeable number, because it can be changed into a prime (1128813737) 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 3 ways as a sum of consecutive naturals, for example, 4149915 + ... + 4150186.

Almost surely, 2^1128813736 is an apocalyptic number.

It is an amenable number.

1128813736 is a deficient number, since it is larger than the sum of its proper divisors (1112213804).

1128813736 is a wasteful number, since it uses less digits than its factorization.

1128813736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300124 (or 8300120 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 1128813736 is about 33597.8233818800. The cubic root of 1128813736 is about 1041.2158290474.

The spelling of 1128813736 in words is "one billion, one hundred twenty-eight million, eight hundred thirteen thousand, seven hundred thirty-six".