135330231 has 8 divisors (see below), whose sum is σ = 180619120. Its totient is φ = 90130752.

The previous prime is 135330227. The next prime is 135330233. The reversal of 135330231 is 132033531.

135330231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135330231 - 2² = 135330227 is a prime.

It is a super-2 number, since 2×135330231² = 36628542845026722, 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 = 135330198 and 135330207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135330233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18736 + ... + 24933.

It is an arithmetic number, because the mean of its divisors is an integer number (22577390).

Almost surely, 2^135330231 is an apocalyptic number.

135330231 is a deficient number, since it is larger than the sum of its proper divisors (45288889).

135330231 is a wasteful number, since it uses less digits than its factorization.

135330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44705.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 135330231 is about 11633.1522383230. The cubic root of 135330231 is about 513.4107301171.

Adding to 135330231 its reverse (132033531), we get a palindrome (267363762).

The spelling of 135330231 in words is "one hundred thirty-five million, three hundred thirty thousand, two hundred thirty-one".