11902229 has 2 divisors, whose sum is σ = 11902230. Its totient is φ = 11902228.

The previous prime is 11902223. The next prime is 11902243. The reversal of 11902229 is 92220911.

It is a happy number.

11902229 is digitally balanced in base 3, 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., 8254129 + 3648100 = 2873^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 11902229 - 2⁴ = 11902213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11902198 and 11902207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11902223) 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, 5951114 + 5951115.

It is an arithmetic number, because the mean of its divisors is an integer number (5951115).

Almost surely, 2^11902229 is an apocalyptic number.

It is an amenable number.

11902229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11902229 is an equidigital number, since it uses as much as digits as its factorization.

11902229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11902229 is about 3449.9607244141. The cubic root of 11902229 is about 228.3193751864.

The spelling of 11902229 in words is "eleven million, nine hundred two thousand, two hundred twenty-nine".