11545589 has 4 divisors (see below), whose sum is σ = 12595200. Its totient is φ = 10495980.

The previous prime is 11545577. The next prime is 11545603. The reversal of 11545589 is 98554511.

11545589 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11545589 - 2²⁰ = 10497013 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 (11545519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524789 + ... + 524810.

It is an arithmetic number, because the mean of its divisors is an integer number (3148800).

Almost surely, 2^11545589 is an apocalyptic number.

It is an amenable number.

11545589 is a deficient number, since it is larger than the sum of its proper divisors (1049611).

11545589 is a wasteful number, since it uses less digits than its factorization.

11545589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049610.

The product of its digits is 36000, while the sum is 38.

The square root of 11545589 is about 3397.8800743993. The cubic root of 11545589 is about 226.0157466774.

The spelling of 11545589 in words is "eleven million, five hundred forty-five thousand, five hundred eighty-nine".