235913 has 4 divisors (see below), whose sum is σ = 237060. Its totient is φ = 234768.

The previous prime is 235901. The next prime is 235919. The reversal of 235913 is 319532.

It is a happy number.

235913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 135424 = 317^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 235913 - 2⁶ = 235849 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235913.

It is not an unprimeable number, because it can be changed into a prime (235919) 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, 170 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (59265).

2²³⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

235913 is a deficient number, since it is larger than the sum of its proper divisors (1147).

235913 is an equidigital number, since it uses as much as digits as its factorization.

235913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its digits is 810, while the sum is 23.

The square root of 235913 is about 485.7087604728. The cubic root of 235913 is about 61.7898713689.

The spelling of 235913 in words is "two hundred thirty-five thousand, nine hundred thirteen".