1089128733 has 24 divisors (see below), whose sum is σ = 1842832800. Its totient is φ = 565780320.

The previous prime is 1089128717. The next prime is 1089128737. The reversal of 1089128733 is 3378219801.

It is not a de Polignac number, because 1089128733 - 2⁴ = 1089128717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089128737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335158 + ... + 338391.

It is an arithmetic number, because the mean of its divisors is an integer number (76784700).

Almost surely, 2^1089128733 is an apocalyptic number.

It is an amenable number.

1089128733 is a deficient number, since it is larger than the sum of its proper divisors (753704067).

1089128733 is a wasteful number, since it uses less digits than its factorization.

1089128733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673577 (or 673570 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1089128733 is about 33001.9504423602. The cubic root of 1089128733 is about 1028.8681861790.

The spelling of 1089128733 in words is "one billion, eighty-nine million, one hundred twenty-eight thousand, seven hundred thirty-three".