231134135 has 8 divisors (see below), whose sum is σ = 277876896. Its totient is φ = 184563360.

The previous prime is 231134129. The next prime is 231134149. The reversal of 231134135 is 531431132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231134135 - 2⁴ = 231134119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231134135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40019 + ... + 45428.

It is an arithmetic number, because the mean of its divisors is an integer number (34734612).

Almost surely, 2^231134135 is an apocalyptic number.

231134135 is a deficient number, since it is larger than the sum of its proper divisors (46742761).

231134135 is an equidigital number, since it uses as much as digits as its factorization.

231134135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85993.

The product of its digits is 1080, while the sum is 23.

The square root of 231134135 is about 15203.0962307025. The cubic root of 231134135 is about 613.6979835431.

Adding to 231134135 its reverse (531431132), we get a palindrome (762565267).

The spelling of 231134135 in words is "two hundred thirty-one million, one hundred thirty-four thousand, one hundred thirty-five".