134779 has 4 divisors (see below), whose sum is σ = 137376. Its totient is φ = 132184.

The previous prime is 134777. The next prime is 134789. The reversal of 134779 is 977431.

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

It is a cyclic number.

It is not a de Polignac number, because 134779 - 2¹ = 134777 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁶ + 7 + 4⁷ + 7⁶ + 9 .

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 134779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134777) 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, 1219 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (34344).

2¹³⁴⁷⁷⁹ is an apocalyptic number.

134779 is a deficient number, since it is larger than the sum of its proper divisors (2597).

134779 is an equidigital number, since it uses as much as digits as its factorization.

134779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its digits is 5292, while the sum is 31.

The square root of 134779 is about 367.1225953275. The cubic root of 134779 is about 51.2712701717.

The spelling of 134779 in words is "one hundred thirty-four thousand, seven hundred seventy-nine".