232009 has 4 divisors (see below), whose sum is σ = 244240. Its totient is φ = 219780.

The previous prime is 232007. The next prime is 232013. The reversal of 232009 is 900232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232009 - 2¹ = 232007 is a prime.

It is a Duffinian number.

232009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 231983 and 232001.

It is not an unprimeable number, because it can be changed into a prime (232003) 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, 6087 + ... + 6124.

It is an arithmetic number, because the mean of its divisors is an integer number (61060).

2²³²⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

232009 is a deficient number, since it is larger than the sum of its proper divisors (12231).

232009 is a wasteful number, since it uses less digits than its factorization.

232009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12230.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 232009 is about 481.6731256776. The cubic root of 232009 is about 61.4471310681.

The spelling of 232009 in words is "two hundred thirty-two thousand, nine".