11587109 has 4 divisors (see below), whose sum is σ = 11611200. Its totient is φ = 11563020.

The previous prime is 11587091. The next prime is 11587111. The reversal of 11587109 is 90178511.

11587109 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 a cyclic number.

It is not a de Polignac number, because 11587109 - 2⁸ = 11586853 is a prime.

It is a super-2 number, since 2×11587109² = 268522189955762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11587189) 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, 11309 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (2902800).

Almost surely, 2^11587109 is an apocalyptic number.

It is an amenable number.

11587109 is a deficient number, since it is larger than the sum of its proper divisors (24091).

11587109 is an equidigital number, since it uses as much as digits as its factorization.

11587109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24090.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 11587109 is about 3403.9842831600. The cubic root of 11587109 is about 226.2863535492.

The spelling of 11587109 in words is "eleven million, five hundred eighty-seven thousand, one hundred nine".