134719728 has 160 divisors (see below), whose sum is σ = 430805760. Its totient is φ = 35665920.

The previous prime is 134719721. The next prime is 134719729. The reversal of 134719728 is 827917431.

It is a super-2 number, since 2×134719728² = 36298810224787968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134719728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134719721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129900 + ... + 130932.

It is an arithmetic number, because the mean of its divisors is an integer number (2692536).

Almost surely, 2^134719728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134719728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215402880).

134719728 is an abundant number, since it is smaller than the sum of its proper divisors (296086032).

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

134719728 is a wasteful number, since it uses less digits than its factorization.

134719728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1081 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 134719728 is about 11606.8827856578. The cubic root of 134719728 is about 512.6375318381.

The spelling of 134719728 in words is "one hundred thirty-four million, seven hundred nineteen thousand, seven hundred twenty-eight".