233975021 has 16 divisors (see below), whose sum is σ = 281247744. Its totient is φ = 190303344.

The previous prime is 233975003. The next prime is 233975023. The reversal of 233975021 is 120579332.

It is not a de Polignac number, because 233975021 - 2⁶ = 233974957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233975023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14726 + ... + 26168.

It is an arithmetic number, because the mean of its divisors is an integer number (17577984).

Almost surely, 2^233975021 is an apocalyptic number.

It is an amenable number.

233975021 is a deficient number, since it is larger than the sum of its proper divisors (47272723).

233975021 is a wasteful number, since it uses less digits than its factorization.

233975021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11600.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 233975021 is about 15296.2420548316. The cubic root of 233975021 is about 616.2020871290.

The spelling of 233975021 in words is "two hundred thirty-three million, nine hundred seventy-five thousand, twenty-one".