229302289 has 4 divisors (see below), whose sum is σ = 229461556. Its totient is φ = 229143024.

The previous prime is 229302263. The next prime is 229302329. The reversal of 229302289 is 982203922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217857600 + 11444689 = 14760^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 229302289 - 2⁹ = 229301777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229302389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77454 + ... + 80359.

It is an arithmetic number, because the mean of its divisors is an integer number (57365389).

Almost surely, 2^229302289 is an apocalyptic number.

It is an amenable number.

229302289 is a deficient number, since it is larger than the sum of its proper divisors (159267).

229302289 is a wasteful number, since it uses less digits than its factorization.

229302289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159266.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 229302289 is about 15142.7305661826. The cubic root of 229302289 is about 612.0724003728.

The spelling of 229302289 in words is "two hundred twenty-nine million, three hundred two thousand, two hundred eighty-nine".