233128765 has 16 divisors (see below), whose sum is σ = 299476800. Its totient is φ = 173688192.

The previous prime is 233128703. The next prime is 233128771. The reversal of 233128765 is 567821332.

It is a cyclic number.

It is not a de Polignac number, because 233128765 - 2¹¹ = 233126717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15192 + ... + 26401.

It is an arithmetic number, because the mean of its divisors is an integer number (18717300).

Almost surely, 2^233128765 is an apocalyptic number.

It is an amenable number.

233128765 is a deficient number, since it is larger than the sum of its proper divisors (66348035).

233128765 is a wasteful number, since it uses less digits than its factorization.

233128765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41676.

The product of its digits is 60480, while the sum is 37.

The square root of 233128765 is about 15268.5547777123. The cubic root of 233128765 is about 615.4582831300.

The spelling of 233128765 in words is "two hundred thirty-three million, one hundred twenty-eight thousand, seven hundred sixty-five".