1165422589 has 16 divisors (see below), whose sum is σ = 1262226880. Its totient is φ = 1072621440.

The previous prime is 1165422569. The next prime is 1165422617. The reversal of 1165422589 is 9852245611.

It is not a de Polignac number, because 1165422589 - 2²⁷ = 1031204861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165422569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86659 + ... + 99199.

It is an arithmetic number, because the mean of its divisors is an integer number (78889180).

Almost surely, 2^1165422589 is an apocalyptic number.

1165422589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1165422589 is a deficient number, since it is larger than the sum of its proper divisors (96804291).

1165422589 is a wasteful number, since it uses less digits than its factorization.

1165422589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700.

The product of its digits is 172800, while the sum is 43.

The square root of 1165422589 is about 34138.2862633730. The cubic root of 1165422589 is about 1052.3522740516.

It can be divided in two parts, 11654 and 22589, that added together give a palindrome (34243).

The spelling of 1165422589 in words is "one billion, one hundred sixty-five million, four hundred twenty-two thousand, five hundred eighty-nine".