11587513 has 8 divisors (see below), whose sum is σ = 13276928. Its totient is φ = 9906624.

The previous prime is 11587481. The next prime is 11587519. The reversal of 11587513 is 31578511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11587513 - 2⁵ = 11587481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11587519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120 + ... + 4942.

It is an arithmetic number, because the mean of its divisors is an integer number (1659616).

Almost surely, 2^11587513 is an apocalyptic number.

It is an amenable number.

11587513 is a deficient number, since it is larger than the sum of its proper divisors (1689415).

11587513 is an equidigital number, since it uses as much as digits as its factorization.

11587513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its digits is 4200, while the sum is 31.

The square root of 11587513 is about 3404.0436248673. The cubic root of 11587513 is about 226.2889834437.

It can be divided in two parts, 11587 and 513, that added together give a square (12100 = 110²).

The spelling of 11587513 in words is "eleven million, five hundred eighty-seven thousand, five hundred thirteen".