134320128 has 104 divisors (see below), whose sum is σ = 379800288. Its totient is φ = 42074112.

The previous prime is 134320127. The next prime is 134320157. The reversal of 134320128 is 821023431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 134320098 and 134320107.

It is not an unprimeable number, because it can be changed into a prime (134320127) 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, 208575 + ... + 209217.

Almost surely, 2^134320128 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 134320128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189900144).

134320128 is an abundant number, since it is smaller than the sum of its proper divisors (245480160).

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

134320128 is an equidigital number, since it uses as much as digits as its factorization.

134320128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 134320128 is about 11589.6560777272. The cubic root of 134320128 is about 512.1301752337.

Adding to 134320128 its reverse (821023431), we get a palindrome (955343559).

The spelling of 134320128 in words is "one hundred thirty-four million, three hundred twenty thousand, one hundred twenty-eight".