11139841 has 4 divisors (see below), whose sum is σ = 11150932. Its totient is φ = 11128752.

The previous prime is 11139839. The next prime is 11139851. The reversal of 11139841 is 14893111.

11139841 is digitally balanced in base 2, 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 874225 + 10265616 = 935^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 11139841 - 2¹ = 11139839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11139851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870 + ... + 6103.

It is an arithmetic number, because the mean of its divisors is an integer number (2787733).

Almost surely, 2^11139841 is an apocalyptic number.

It is an amenable number.

11139841 is a deficient number, since it is larger than the sum of its proper divisors (11091).

11139841 is an equidigital number, since it uses as much as digits as its factorization.

11139841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090.

The product of its digits is 864, while the sum is 28.

The square root of 11139841 is about 3337.6400345154. The cubic root of 11139841 is about 223.3364785082.

The spelling of 11139841 in words is "eleven million, one hundred thirty-nine thousand, eight hundred forty-one".