229022809 has 2 divisors, whose sum is σ = 229022810. Its totient is φ = 229022808.

The previous prime is 229022779. The next prime is 229022839. The reversal of 229022809 is 908220922.

It is a balanced prime because it is at equal distance from previous prime (229022779) and next prime (229022839).

It can be written as a sum of positive squares in only one way, i.e., 224160784 + 4862025 = 14972^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 229022809 - 2¹¹ = 229020761 is a prime.

It is not a weakly prime, because it can be changed into another prime (229022839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114511404 + 114511405.

It is an arithmetic number, because the mean of its divisors is an integer number (114511405).

Almost surely, 2^229022809 is an apocalyptic number.

It is an amenable number.

229022809 is a deficient number, since it is larger than the sum of its proper divisors (1).

229022809 is an equidigital number, since it uses as much as digits as its factorization.

229022809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 229022809 is about 15133.4995622295. The cubic root of 229022809 is about 611.8236289938.

The spelling of 229022809 in words is "two hundred twenty-nine million, twenty-two thousand, eight hundred nine".