134878 has 8 divisors (see below), whose sum is σ = 214272. Its totient is φ = 63456.

The previous prime is 134873. The next prime is 134887. The reversal of 134878 is 878431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (26784).

2¹³⁴⁸⁷⁸ is an apocalyptic number.

134878 is a deficient number, since it is larger than the sum of its proper divisors (79394).

134878 is a wasteful number, since it uses less digits than its factorization.

134878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its digits is 5376, while the sum is 31.

The square root of 134878 is about 367.2574029206. The cubic root of 134878 is about 51.2838206270.

The spelling of 134878 in words is "one hundred thirty-four thousand, eight hundred seventy-eight".