1089589071 has 4 divisors (see below), whose sum is σ = 1452785432. Its totient is φ = 726392712.

The previous prime is 1089589037. The next prime is 1089589079. The reversal of 1089589071 is 1709859801.

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

It is not a de Polignac number, because 1089589071 - 2¹⁰ = 1089588047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1089589071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089589079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181598176 + ... + 181598181.

It is an arithmetic number, because the mean of its divisors is an integer number (363196358).

Almost surely, 2^1089589071 is an apocalyptic number.

1089589071 is a deficient number, since it is larger than the sum of its proper divisors (363196361).

1089589071 is an equidigital number, since it uses as much as digits as its factorization.

1089589071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363196360.

The product of its (nonzero) digits is 181440, while the sum is 48.

The square root of 1089589071 is about 33008.9241115187. The cubic root of 1089589071 is about 1029.0131217273.

The spelling of 1089589071 in words is "one billion, eighty-nine million, five hundred eighty-nine thousand, seventy-one".