233113209 has 16 divisors (see below), whose sum is σ = 364821888. Its totient is φ = 129606912.

The previous prime is 233113201. The next prime is 233113217. The reversal of 233113209 is 902311332.

It is an interprime number because it is at equal distance from previous prime (233113201) and next prime (233113217).

It is not a de Polignac number, because 233113209 - 2³ = 233113201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233113201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149232 + ... + 150785.

It is an arithmetic number, because the mean of its divisors is an integer number (22801368).

Almost surely, 2^233113209 is an apocalyptic number.

It is an amenable number.

233113209 is a deficient number, since it is larger than the sum of its proper divisors (131708679).

233113209 is a wasteful number, since it uses less digits than its factorization.

233113209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300064.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 233113209 is about 15268.0453562334. The cubic root of 233113209 is about 615.4445935823. Note that the first 3 decimals are identical.

The spelling of 233113209 in words is "two hundred thirty-three million, one hundred thirteen thousand, two hundred nine".