11138249 has 4 divisors (see below), whose sum is σ = 11148180. Its totient is φ = 11128320.

The previous prime is 11138243. The next prime is 11138251. The reversal of 11138249 is 94283111.

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 4020025 + 7118224 = 2005^2 + 2668^2 .

It is a cyclic number.

It is not a de Polignac number, because 11138249 - 2⁸ = 11137993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11138243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3032 + ... + 5609.

It is an arithmetic number, because the mean of its divisors is an integer number (2787045).

Almost surely, 2^11138249 is an apocalyptic number.

It is an amenable number.

11138249 is a deficient number, since it is larger than the sum of its proper divisors (9931).

11138249 is an equidigital number, since it uses as much as digits as its factorization.

11138249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930.

The product of its digits is 1728, while the sum is 29.

The square root of 11138249 is about 3337.4015341280. The cubic root of 11138249 is about 223.3258389604.

The spelling of 11138249 in words is "eleven million, one hundred thirty-eight thousand, two hundred forty-nine".