229823609 has 2 divisors, whose sum is σ = 229823610. Its totient is φ = 229823608.

The previous prime is 229823593. The next prime is 229823611. The reversal of 229823609 is 906328922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219869584 + 9954025 = 14828^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 229823609 - 2⁴ = 229823593 is a prime.

Together with 229823611, 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 (229823509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114911804 + 114911805.

It is an arithmetic number, because the mean of its divisors is an integer number (114911805).

Almost surely, 2^229823609 is an apocalyptic number.

It is an amenable number.

229823609 is a deficient number, since it is larger than the sum of its proper divisors (1).

229823609 is an equidigital number, since it uses as much as digits as its factorization.

229823609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 229823609 is about 15159.9343336309. The cubic root of 229823609 is about 612.5358992703.

The spelling of 229823609 in words is "two hundred twenty-nine million, eight hundred twenty-three thousand, six hundred nine".