135728664 has 32 divisors (see below), whose sum is σ = 350269440. Its totient is φ = 43783200.

The previous prime is 135728657. The next prime is 135728669. The reversal of 135728664 is 466827531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135728669) 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, 90472 + ... + 91959.

It is an arithmetic number, because the mean of its divisors is an integer number (10945920).

Almost surely, 2^135728664 is an apocalyptic number.

It is an amenable number.

135728664 is an abundant number, since it is smaller than the sum of its proper divisors (214540776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135728664 is a wasteful number, since it uses less digits than its factorization.

135728664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182471 (or 182467 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 135728664 is about 11650.2645463526. The cubic root of 135728664 is about 513.9140898169.

The spelling of 135728664 in words is "one hundred thirty-five million, seven hundred twenty-eight thousand, six hundred sixty-four".