233881 has 2 divisors, whose sum is σ = 233882. Its totient is φ = 233880.

The previous prime is 233879. The next prime is 233911. The reversal of 233881 is 188332.

233881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

233881 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230400 + 3481 = 480^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 233881 - 2¹ = 233879 is a prime.

It is a super-2 number, since 2×233881² = 109400644322, which contains 22 as substring.

Together with 233879, it forms a pair of twin primes.

233881 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (233851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116940 + 116941.

It is an arithmetic number, because the mean of its divisors is an integer number (116941).

2²³³⁸⁸¹ is an apocalyptic number.

It is an amenable number.

233881 is a deficient number, since it is larger than the sum of its proper divisors (1).

233881 is an equidigital number, since it uses as much as digits as its factorization.

233881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 233881 is about 483.6124481442. The cubic root of 233881 is about 61.6119537436.

The spelling of 233881 in words is "two hundred thirty-three thousand, eight hundred eighty-one".