135281312 has 24 divisors (see below), whose sum is σ = 266607936. Its totient is φ = 67571392.

The previous prime is 135281309. The next prime is 135281327. The reversal of 135281312 is 213182531.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46163 + ... + 49005.

It is an arithmetic number, because the mean of its divisors is an integer number (11108664).

Almost surely, 2^135281312 is an apocalyptic number.

It is an amenable number.

135281312 is a deficient number, since it is larger than the sum of its proper divisors (131326624).

135281312 is a wasteful number, since it uses less digits than its factorization.

135281312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4332 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 135281312 is about 11631.0494797331. The cubic root of 135281312 is about 513.3488603088.

The spelling of 135281312 in words is "one hundred thirty-five million, two hundred eighty-one thousand, three hundred twelve".