134678 has 4 divisors (see below), whose sum is σ = 202020. Its totient is φ = 67338.

The previous prime is 134677. The next prime is 134681. The reversal of 134678 is 876431.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 134678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33668 + ... + 33671.

It is an arithmetic number, because the mean of its divisors is an integer number (50505).

2¹³⁴⁶⁷⁸ is an apocalyptic number.

134678 is a deficient number, since it is larger than the sum of its proper divisors (67342).

134678 is an equidigital number, since it uses as much as digits as its factorization.

134678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67341.

The product of its digits is 4032, while the sum is 29.

The square root of 134678 is about 366.9850133180. The cubic root of 134678 is about 51.2584598369.

The spelling of 134678 in words is "one hundred thirty-four thousand, six hundred seventy-eight".