229606649 has 2 divisors, whose sum is σ = 229606650. Its totient is φ = 229606648.

The previous prime is 229606591. The next prime is 229606651. The reversal of 229606649 is 946606922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174372025 + 55234624 = 13205^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 229606649 - 2²⁰ = 228558073 is a prime.

Together with 229606651, 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 (229606049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114803324 + 114803325.

It is an arithmetic number, because the mean of its divisors is an integer number (114803325).

Almost surely, 2^229606649 is an apocalyptic number.

It is an amenable number.

229606649 is a deficient number, since it is larger than the sum of its proper divisors (1).

229606649 is an equidigital number, since it uses as much as digits as its factorization.

229606649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 229606649 is about 15152.7769402179. The cubic root of 229606649 is about 612.3430881685.

The spelling of 229606649 in words is "two hundred twenty-nine million, six hundred six thousand, six hundred forty-nine".