11139688 has 32 divisors (see below), whose sum is σ = 24235200. Its totient is φ = 4701312.

The previous prime is 11139677. The next prime is 11139721. The reversal of 11139688 is 88693111.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2268 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (757350).

Almost surely, 2^11139688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11139688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12117600).

11139688 is an abundant number, since it is smaller than the sum of its proper divisors (13095512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11139688 is a wasteful number, since it uses less digits than its factorization.

11139688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049 (or 3045 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 11139688 is about 3337.6171140501. The cubic root of 11139688 is about 223.3354560329.

It can be divided in two parts, 1113 and 9688, that added together give a palindrome (10801).

The spelling of 11139688 in words is "eleven million, one hundred thirty-nine thousand, six hundred eighty-eight".