11199149 has 8 divisors (see below), whose sum is σ = 12226872. Its totient is φ = 10195200.

The previous prime is 11199143. The next prime is 11199157. The reversal of 11199149 is 94199111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 669124 + 10530025 = 818^2 + 3245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11199149 - 2⁸ = 11198893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11199143) 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 7 ways as a sum of consecutive naturals, for example, 4952 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (1528359).

Almost surely, 2^11199149 is an apocalyptic number.

It is an amenable number.

11199149 is a deficient number, since it is larger than the sum of its proper divisors (1027723).

11199149 is a wasteful number, since it uses less digits than its factorization.

11199149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11887.

The product of its digits is 2916, while the sum is 35.

The square root of 11199149 is about 3346.5129612778. The cubic root of 11199149 is about 223.7321215806.

The spelling of 11199149 in words is "eleven million, one hundred ninety-nine thousand, one hundred forty-nine".