233243009 has 8 divisors (see below), whose sum is σ = 248246280. Its totient is φ = 218382336.

The previous prime is 233242991. The next prime is 233243033. The reversal of 233243009 is 900342332.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 233020225 = 472^2 + 15265^2 .

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 233243009 - 2¹² = 233238913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233243099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32264 + ... + 38825.

It is an arithmetic number, because the mean of its divisors is an integer number (31030785).

Almost surely, 2^233243009 is an apocalyptic number.

It is an amenable number.

233243009 is a deficient number, since it is larger than the sum of its proper divisors (15003271).

233243009 is a wasteful number, since it uses less digits than its factorization.

233243009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71299.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 233243009 is about 15272.2954725215. The cubic root of 233243009 is about 615.5588011617.

The spelling of 233243009 in words is "two hundred thirty-three million, two hundred forty-three thousand, nine".