233668133 has 4 divisors (see below), whose sum is σ = 233871948. Its totient is φ = 233464320.

The previous prime is 233668117. The next prime is 233668139. The reversal of 233668133 is 331866332.

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 173791489 + 59876644 = 13183^2 + 7738^2 .

It is a cyclic number.

It is not a de Polignac number, because 233668133 - 2⁴ = 233668117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 233668093 and 233668102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233668139) 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, 100178 + ... + 102483.

It is an arithmetic number, because the mean of its divisors is an integer number (58467987).

Almost surely, 2^233668133 is an apocalyptic number.

It is an amenable number.

233668133 is a deficient number, since it is larger than the sum of its proper divisors (203815).

233668133 is a wasteful number, since it uses less digits than its factorization.

233668133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203814.

The product of its digits is 46656, while the sum is 35.

The square root of 233668133 is about 15286.2072797669. The cubic root of 233668133 is about 615.9325601171.

The spelling of 233668133 in words is "two hundred thirty-three million, six hundred sixty-eight thousand, one hundred thirty-three".