134723 has 4 divisors (see below), whose sum is σ = 135600. Its totient is φ = 133848.

The previous prime is 134707. The next prime is 134731. The reversal of 134723 is 327431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 134723 - 2⁴ = 134707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134695 and 134704.

It is not an unprimeable number, because it can be changed into a prime (134753) 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 in 3 ways as a sum of consecutive naturals, for example, 140 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (33900).

2¹³⁴⁷²³ is an apocalyptic number.

134723 is a deficient number, since it is larger than the sum of its proper divisors (877).

134723 is an equidigital number, since it uses as much as digits as its factorization.

134723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its digits is 504, while the sum is 20.

The square root of 134723 is about 367.0463186030. The cubic root of 134723 is about 51.2641682026.

The spelling of 134723 in words is "one hundred thirty-four thousand, seven hundred twenty-three".