134879 has 4 divisors (see below), whose sum is σ = 139560. Its totient is φ = 130200.

The previous prime is 134873. The next prime is 134887. The reversal of 134879 is 978431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978431 = 29 ⋅33739.

It is a cyclic number.

It is not a de Polignac number, because 134879 - 2¹² = 130783 is a prime.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (34890).

2¹³⁴⁸⁷⁹ is an apocalyptic number.

134879 is a deficient number, since it is larger than the sum of its proper divisors (4681).

134879 is an equidigital number, since it uses as much as digits as its factorization.

134879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680.

The product of its digits is 6048, while the sum is 32.

The square root of 134879 is about 367.2587643610. The cubic root of 134879 is about 51.2839473679.

The spelling of 134879 in words is "one hundred thirty-four thousand, eight hundred seventy-nine".