11813849 has 2 divisors, whose sum is σ = 11813850. Its totient is φ = 11813848.

The previous prime is 11813831. The next prime is 11813887. The reversal of 11813849 is 94831811.

11813849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 5438224 = 2525^2 + 2332^2 .

It is a cyclic number.

It is not a de Polignac number, because 11813849 - 2¹⁶ = 11748313 is a prime.

It is not a weakly prime, because it can be changed into another prime (11813819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5906924 + 5906925.

It is an arithmetic number, because the mean of its divisors is an integer number (5906925).

Almost surely, 2^11813849 is an apocalyptic number.

It is an amenable number.

11813849 is a deficient number, since it is larger than the sum of its proper divisors (1).

11813849 is an equidigital number, since it uses as much as digits as its factorization.

11813849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 35.

The square root of 11813849 is about 3437.1280162368. The cubic root of 11813849 is about 227.7528421025.

The spelling of 11813849 in words is "eleven million, eight hundred thirteen thousand, eight hundred forty-nine".