134728 has 16 divisors (see below), whose sum is σ = 275760. Its totient is φ = 61200.

The previous prime is 134707. The next prime is 134731. The reversal of 134728 is 827431.

It is an Ulam 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, 678 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (17235).

2¹³⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

134728 is an abundant number, since it is smaller than the sum of its proper divisors (141032).

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

134728 is a wasteful number, since it uses less digits than its factorization.

134728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1544 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 134728 is about 367.0531296693. The cubic root of 134728 is about 51.2648023870.

The spelling of 134728 in words is "one hundred thirty-four thousand, seven hundred twenty-eight".