11154449 has 2 divisors, whose sum is σ = 11154450. Its totient is φ = 11154448.

The previous prime is 11154443. The next prime is 11154457. The reversal of 11154449 is 94445111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 3972049 = 2680^2 + 1993^2 .

It is an emirp because it is prime and its reverse (94445111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11154449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11154443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577224 + 5577225.

It is an arithmetic number, because the mean of its divisors is an integer number (5577225).

Almost surely, 2^11154449 is an apocalyptic number.

It is an amenable number.

11154449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154449 is an equidigital number, since it uses as much as digits as its factorization.

11154449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 11154449 is about 3339.8276901661. The cubic root of 11154449 is about 223.4340584242.

The spelling of 11154449 in words is "eleven million, one hundred fifty-four thousand, four hundred forty-nine".