134309728 has 24 divisors (see below), whose sum is σ = 302197392. Its totient is φ = 57561216.

The previous prime is 134309713. The next prime is 134309743. The reversal of 134309728 is 827903431.

It is an interprime number because it is at equal distance from previous prime (134309713) and next prime (134309743).

It is a congruent number.

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, 299575 + ... + 300022.

It is an arithmetic number, because the mean of its divisors is an integer number (12591558).

Almost surely, 2^134309728 is an apocalyptic number.

It is an amenable number.

134309728 is an abundant number, since it is smaller than the sum of its proper divisors (167887664).

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

134309728 is an equidigital number, since it uses as much as digits as its factorization.

134309728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599614 (or 599606 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 134309728 is about 11589.2073930878. The cubic root of 134309728 is about 512.1169573306.

The spelling of 134309728 in words is "one hundred thirty-four million, three hundred nine thousand, seven hundred twenty-eight".