134647 has 4 divisors (see below), whose sum is σ = 139320. Its totient is φ = 129976.

The previous prime is 134639. The next prime is 134669. The reversal of 134647 is 746431.

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 134647 - 2³ = 134639 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 (134677) 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, 2293 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (34830).

2¹³⁴⁶⁴⁷ is an apocalyptic number.

134647 is a deficient number, since it is larger than the sum of its proper divisors (4673).

134647 is an equidigital number, since it uses as much as digits as its factorization.

134647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672.

The product of its digits is 2016, while the sum is 25.

The square root of 134647 is about 366.9427748301. The cubic root of 134647 is about 51.2545266674.

The spelling of 134647 in words is "one hundred thirty-four thousand, six hundred forty-seven".