11812249 has 2 divisors, whose sum is σ = 11812250. Its totient is φ = 11812248.

The previous prime is 11812231. The next prime is 11812259. The reversal of 11812249 is 94221811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9030025 + 2782224 = 3005^2 + 1668^2 .

It is an emirp because it is prime and its reverse (94221811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11812249 - 2⁵ = 11812217 is a prime.

It is not a weakly prime, because it can be changed into another prime (11812259) 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 as a sum of consecutive naturals, namely, 5906124 + 5906125.

It is an arithmetic number, because the mean of its divisors is an integer number (5906125).

Almost surely, 2^11812249 is an apocalyptic number.

It is an amenable number.

11812249 is a deficient number, since it is larger than the sum of its proper divisors (1).

11812249 is an equidigital number, since it uses as much as digits as its factorization.

11812249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 11812249 is about 3436.8952558959. The cubic root of 11812249 is about 227.7425597918.

The spelling of 11812249 in words is "eleven million, eight hundred twelve thousand, two hundred forty-nine".