134478678 has 8 divisors (see below), whose sum is σ = 268957368. Its totient is φ = 44826224.

The previous prime is 134478671. The next prime is 134478689. The reversal of 134478678 is 876874431.

134478678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

134478678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134478671) 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, 11206551 + ... + 11206562.

It is an arithmetic number, because the mean of its divisors is an integer number (33619671).

Almost surely, 2^134478678 is an apocalyptic number.

134478678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

134478678 is a wasteful number, since it uses less digits than its factorization.

134478678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22413118.

The product of its digits is 903168, while the sum is 48.

The square root of 134478678 is about 11596.4942116141. The cubic root of 134478678 is about 512.3316002743.

The spelling of 134478678 in words is "one hundred thirty-four million, four hundred seventy-eight thousand, six hundred seventy-eight".