233138927 has 4 divisors (see below), whose sum is σ = 266444496. Its totient is φ = 199833360.

The previous prime is 233138923. The next prime is 233138947. The reversal of 233138927 is 729831332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233138927 - 2² = 233138923 is a prime.

It is a super-2 number, since 2×233138927² = 108707518565422658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233138923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16652774 + ... + 16652787.

It is an arithmetic number, because the mean of its divisors is an integer number (66611124).

Almost surely, 2^233138927 is an apocalyptic number.

233138927 is a deficient number, since it is larger than the sum of its proper divisors (33305569).

233138927 is an equidigital number, since it uses as much as digits as its factorization.

233138927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33305568.

The product of its digits is 54432, while the sum is 38.

The square root of 233138927 is about 15268.8875495237. The cubic root of 233138927 is about 615.4672255360.

The spelling of 233138927 in words is "two hundred thirty-three million, one hundred thirty-eight thousand, nine hundred twenty-seven".