11491039 has 6 divisors (see below), whose sum is σ = 13367184. Its totient is φ = 9849420.

The previous prime is 11491037. The next prime is 11491043. The reversal of 11491039 is 93019411.

It is a happy number.

11491039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11491039 - 2¹ = 11491037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11490998 and 11491016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117207 + ... + 117304.

It is an arithmetic number, because the mean of its divisors is an integer number (2227864).

Almost surely, 2^11491039 is an apocalyptic number.

11491039 is a deficient number, since it is larger than the sum of its proper divisors (1876145).

11491039 is an equidigital number, since it uses as much as digits as its factorization.

11491039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234525 (or 234518 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11491039 is about 3389.8435067124. The cubic root of 11491039 is about 225.6592287754.

The spelling of 11491039 in words is "eleven million, four hundred ninety-one thousand, thirty-nine".