11155849 has 2 divisors, whose sum is σ = 11155850. Its totient is φ = 11155848.

The previous prime is 11155847. The next prime is 11155861. The reversal of 11155849 is 94855111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 915849 = 3200^2 + 957^2 .

It is a cyclic number.

It is not a de Polignac number, because 11155849 - 2¹ = 11155847 is a prime.

Together with 11155847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11155841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577924 + 5577925.

It is an arithmetic number, because the mean of its divisors is an integer number (5577925).

Almost surely, 2^11155849 is an apocalyptic number.

It is an amenable number.

11155849 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155849 is an equidigital number, since it uses as much as digits as its factorization.

11155849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 34.

The square root of 11155849 is about 3340.0372752411. The cubic root of 11155849 is about 223.4434058034.

The spelling of 11155849 in words is "eleven million, one hundred fifty-five thousand, eight hundred forty-nine".