11587113 has 6 divisors (see below), whose sum is σ = 16736954. Its totient is φ = 7724736.

The previous prime is 11587111. The next prime is 11587127. The reversal of 11587113 is 31178511.

It can be written as a sum of positive squares in only one way, i.e., 9715689 + 1871424 = 3117^2 + 1368^2 .

It is not a de Polignac number, because 11587113 - 2¹ = 11587111 is a prime.

It is a super-2 number, since 2×11587113² = 268522375349538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11587111) 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 5 ways as a sum of consecutive naturals, for example, 643720 + ... + 643737.

Almost surely, 2^11587113 is an apocalyptic number.

It is an amenable number.

11587113 is a deficient number, since it is larger than the sum of its proper divisors (5149841).

11587113 is a wasteful number, since it uses less digits than its factorization.

11587113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287463 (or 1287460 counting only the distinct ones).

The product of its digits is 840, while the sum is 27.

The square root of 11587113 is about 3403.9848707067. The cubic root of 11587113 is about 226.2863795880.

The spelling of 11587113 in words is "eleven million, five hundred eighty-seven thousand, one hundred thirteen".