229505135 has 4 divisors (see below), whose sum is σ = 275406168. Its totient is φ = 183604104.

The previous prime is 229505131. The next prime is 229505153. The reversal of 229505135 is 531505922.

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

It is a cyclic number.

It is not a de Polignac number, because 229505135 - 2² = 229505131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229505131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22950509 + ... + 22950518.

It is an arithmetic number, because the mean of its divisors is an integer number (68851542).

Almost surely, 2^229505135 is an apocalyptic number.

229505135 is a deficient number, since it is larger than the sum of its proper divisors (45901033).

229505135 is an equidigital number, since it uses as much as digits as its factorization.

229505135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45901032.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 229505135 is about 15149.4268868495. The cubic root of 229505135 is about 612.2528315496.

The spelling of 229505135 in words is "two hundred twenty-nine million, five hundred five thousand, one hundred thirty-five".