229109 has 4 divisors (see below), whose sum is σ = 242604. Its totient is φ = 215616.

The previous prime is 229093. The next prime is 229123. The reversal of 229109 is 901922.

229109 = 65² + 66² + ... + 98².

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 168100 + 61009 = 410^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 229109 - 2⁴ = 229093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229139) 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, 6722 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (60651).

2²²⁹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

229109 is a deficient number, since it is larger than the sum of its proper divisors (13495).

229109 is a wasteful number, since it uses less digits than its factorization.

229109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 229109 is about 478.6533192197. The cubic root of 229109 is about 61.1900371097.

The spelling of 229109 in words is "two hundred twenty-nine thousand, one hundred nine".