134447 has 4 divisors (see below), whose sum is σ = 138816. Its totient is φ = 130080.

The previous prime is 134443. The next prime is 134471. The reversal of 134447 is 744431.

134447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 134447 - 2² = 134443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134443) 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, 2138 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (34704).

2¹³⁴⁴⁴⁷ is an apocalyptic number.

134447 is a deficient number, since it is larger than the sum of its proper divisors (4369).

134447 is an equidigital number, since it uses as much as digits as its factorization.

134447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368.

The product of its digits is 1344, while the sum is 23.

The square root of 134447 is about 366.6701514986. The cubic root of 134447 is about 51.2291368581.

Adding to 134447 its reverse (744431), we get a palindrome (878878).

The spelling of 134447 in words is "one hundred thirty-four thousand, four hundred forty-seven".