135305271 has 12 divisors (see below), whose sum is σ = 202180680. Its totient is φ = 87092880.

The previous prime is 135305267. The next prime is 135305299. The reversal of 135305271 is 172503531.

135305271 is a `hidden beast` number, since 13 + 530 + 52 + 71 = 666.

It is not a de Polignac number, because 135305271 - 2² = 135305267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135305201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258945 + ... + 259466.

It is an arithmetic number, because the mean of its divisors is an integer number (16848390).

Almost surely, 2^135305271 is an apocalyptic number.

135305271 is a deficient number, since it is larger than the sum of its proper divisors (66875409).

135305271 is a wasteful number, since it uses less digits than its factorization.

135305271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518446 (or 518443 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 135305271 is about 11632.0793927827. The cubic root of 135305271 is about 513.3791640740.

The spelling of 135305271 in words is "one hundred thirty-five million, three hundred five thousand, two hundred seventy-one".