229509079 has 2 divisors, whose sum is σ = 229509080. Its totient is φ = 229509078.

The previous prime is 229509073. The next prime is 229509083. The reversal of 229509079 is 970905922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229509079 - 2⁵ = 229509047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229509073) 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, 114754539 + 114754540.

It is an arithmetic number, because the mean of its divisors is an integer number (114754540).

Almost surely, 2^229509079 is an apocalyptic number.

229509079 is a deficient number, since it is larger than the sum of its proper divisors (1).

229509079 is an equidigital number, since it uses as much as digits as its factorization.

229509079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 229509079 is about 15149.5570562311. The cubic root of 229509079 is about 612.2563386771.

The spelling of 229509079 in words is "two hundred twenty-nine million, five hundred nine thousand, seventy-nine".