11227961 has 2 divisors, whose sum is σ = 11227962. Its totient is φ = 11227960.

The previous prime is 11227919. The next prime is 11227963. The reversal of 11227961 is 16972211.

11227961 is digitally balanced in base 3, because in such base 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., 11155600 + 72361 = 3340^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 11227961 - 2⁶ = 11227897 is a prime.

Together with 11227963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11227963) 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, 5613980 + 5613981.

It is an arithmetic number, because the mean of its divisors is an integer number (5613981).

Almost surely, 2^11227961 is an apocalyptic number.

It is an amenable number.

11227961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11227961 is an equidigital number, since it uses as much as digits as its factorization.

11227961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 11227961 is about 3350.8149754948. The cubic root of 11227961 is about 223.9238221512.

The spelling of 11227961 in words is "eleven million, two hundred twenty-seven thousand, nine hundred sixty-one".