235418231 has 2 divisors, whose sum is σ = 235418232. Its totient is φ = 235418230.

The previous prime is 235418213. The next prime is 235418233. The reversal of 235418231 is 132814532.

It is a happy number.

Together with previous prime (235418213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 235418231 - 2⁶ = 235418167 is a prime.

It is a super-2 number, since 2×235418231² = 110843486974338722, which contains 22 as substring.

Together with 235418233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 235418194 and 235418203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235418233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117709115 + 117709116.

It is an arithmetic number, because the mean of its divisors is an integer number (117709116).

Almost surely, 2^235418231 is an apocalyptic number.

235418231 is a deficient number, since it is larger than the sum of its proper divisors (1).

235418231 is an equidigital number, since it uses as much as digits as its factorization.

235418231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 235418231 is about 15343.3448439380. The cubic root of 235418231 is about 617.4664482636.

The spelling of 235418231 in words is "two hundred thirty-five million, four hundred eighteen thousand, two hundred thirty-one".