235921 has 4 divisors (see below), whose sum is σ = 269632. Its totient is φ = 202212.

The previous prime is 235919. The next prime is 235927. The reversal of 235921 is 129532.

235921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

235921 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 235921 - 2¹ = 235919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235892 and 235901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235927) 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, 16845 + ... + 16858.

It is an arithmetic number, because the mean of its divisors is an integer number (67408).

2²³⁵⁹²¹ is an apocalyptic number.

It is an amenable number.

235921 is a deficient number, since it is larger than the sum of its proper divisors (33711).

235921 is an equidigital number, since it uses as much as digits as its factorization.

235921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33710.

The product of its digits is 540, while the sum is 22.

The square root of 235921 is about 485.7169957908. The cubic root of 235921 is about 61.7905698091.

It can be divided in two parts, 235 and 921, that added together give a square (1156 = 34²).

The spelling of 235921 in words is "two hundred thirty-five thousand, nine hundred twenty-one".