235135231 has 2 divisors, whose sum is σ = 235135232. Its totient is φ = 235135230.

The previous prime is 235135213. The next prime is 235135249. The reversal of 235135231 is 132531532.

Together with previous prime (235135213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (235135213) and next prime (235135249).

It is a cyclic number.

It is not a de Polignac number, because 235135231 - 2⁹ = 235134719 is a prime.

It is a super-2 number, since 2×235135231² = 110577153714846722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 235135196 and 235135205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235135531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117567615 + 117567616.

It is an arithmetic number, because the mean of its divisors is an integer number (117567616).

Almost surely, 2^235135231 is an apocalyptic number.

235135231 is a deficient number, since it is larger than the sum of its proper divisors (1).

235135231 is an equidigital number, since it uses as much as digits as its factorization.

235135231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 235135231 is about 15334.1198312782. The cubic root of 235135231 is about 617.2189269744.

Adding to 235135231 its reverse (132531532), we get a palindrome (367666763).

The spelling of 235135231 in words is "two hundred thirty-five million, one hundred thirty-five thousand, two hundred thirty-one".