229505 has 8 divisors (see below), whose sum is σ = 277992. Its totient is φ = 181888.

The previous prime is 229499. The next prime is 229507. The reversal of 229505 is 505922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49729 + 179776 = 223^2 + 424^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229505 - 2⁸ = 229249 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 (229507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (34749).

2²²⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

229505 is a deficient number, since it is larger than the sum of its proper divisors (48487).

229505 is a wasteful number, since it uses less digits than its factorization.

229505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 229505 is about 479.0668011875. The cubic root of 229505 is about 61.2252711503.

The spelling of 229505 in words is "two hundred twenty-nine thousand, five hundred five".