135231027 has 4 divisors (see below), whose sum is σ = 180308040. Its totient is φ = 90154016.

The previous prime is 135231013. The next prime is 135231049. The reversal of 135231027 is 720132531.

135231027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720132531 = 3 ⋅240044177.

It is a cyclic number.

It is not a de Polignac number, because 135231027 - 2⁴ = 135231011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135230988 and 135231006.

It is not an unprimeable number, because it can be changed into a prime (135231067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22538502 + ... + 22538507.

It is an arithmetic number, because the mean of its divisors is an integer number (45077010).

Almost surely, 2^135231027 is an apocalyptic number.

135231027 is a deficient number, since it is larger than the sum of its proper divisors (45077013).

135231027 is an equidigital number, since it uses as much as digits as its factorization.

135231027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45077012.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 135231027 is about 11628.8876080217. The cubic root of 135231027 is about 513.2852473182.

Adding to 135231027 its reverse (720132531), we get a palindrome (855363558).

The spelling of 135231027 in words is "one hundred thirty-five million, two hundred thirty-one thousand, twenty-seven".