11816149 has 2 divisors, whose sum is σ = 11816150. Its totient is φ = 11816148.

The previous prime is 11816141. The next prime is 11816153. The reversal of 11816149 is 94161811.

11816149 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11437924 + 378225 = 3382^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11816149 - 2³ = 11816141 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11816149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11816141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908074 + 5908075.

It is an arithmetic number, because the mean of its divisors is an integer number (5908075).

Almost surely, 2^11816149 is an apocalyptic number.

It is an amenable number.

11816149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816149 is an equidigital number, since it uses as much as digits as its factorization.

11816149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 31.

The square root of 11816149 is about 3437.4625816145. The cubic root of 11816149 is about 227.7676212979.

The spelling of 11816149 in words is "eleven million, eight hundred sixteen thousand, one hundred forty-nine".