229160209 has 2 divisors, whose sum is σ = 229160210. Its totient is φ = 229160208.

The previous prime is 229160207. The next prime is 229160219. The reversal of 229160209 is 902061922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200505600 + 28654609 = 14160^2 + 5353^2 .

It is a cyclic number.

It is not a de Polignac number, because 229160209 - 2¹ = 229160207 is a prime.

Together with 229160207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (229160207) 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, 114580104 + 114580105.

It is an arithmetic number, because the mean of its divisors is an integer number (114580105).

Almost surely, 2^229160209 is an apocalyptic number.

It is an amenable number.

229160209 is a deficient number, since it is larger than the sum of its proper divisors (1).

229160209 is an equidigital number, since it uses as much as digits as its factorization.

229160209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 229160209 is about 15138.0384792747. The cubic root of 229160209 is about 611.9459570730.

It can be divided in two parts, 2291 and 60209, that added together give a square (62500 = 250²).

The spelling of 229160209 in words is "two hundred twenty-nine million, one hundred sixty thousand, two hundred nine".