235616231 has 4 divisors (see below), whose sum is σ = 235653264. Its totient is φ = 235579200.

The previous prime is 235616203. The next prime is 235616257. The reversal of 235616231 is 132616532.

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 235616231 - 2¹⁰ = 235615207 is a prime.

It is a super-2 number, since 2×235616231² = 111030016621290722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235616194 and 235616203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235616261) 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 3 ways as a sum of consecutive naturals, for example, 6275 + ... + 22596.

It is an arithmetic number, because the mean of its divisors is an integer number (58913316).

Almost surely, 2^235616231 is an apocalyptic number.

235616231 is a deficient number, since it is larger than the sum of its proper divisors (37033).

235616231 is an equidigital number, since it uses as much as digits as its factorization.

235616231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37032.

The product of its digits is 6480, while the sum is 29.

The square root of 235616231 is about 15349.7957966873. The cubic root of 235616231 is about 617.6395077825.

It can be divided in two parts, 23561 and 6231, that added together give a palindrome (29792).

The spelling of 235616231 in words is "two hundred thirty-five million, six hundred sixteen thousand, two hundred thirty-one".