134643 has 8 divisors (see below), whose sum is σ = 184528. Its totient is φ = 87264.

The previous prime is 134639. The next prime is 134669. The reversal of 134643 is 346431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134643 - 2² = 134639 is a prime.

It is a Duffinian number.

It is the 42-nd Perrin number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (23066).

2¹³⁴⁶⁴³ is an apocalyptic number.

134643 is a deficient number, since it is larger than the sum of its proper divisors (49885).

134643 is a wasteful number, since it uses less digits than its factorization.

134643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its digits is 864, while the sum is 21.

The square root of 134643 is about 366.9373243485. The cubic root of 134643 is about 51.2540191177.

It can be divided in two parts, 134 and 643, that added together give a palindrome (777).

The spelling of 134643 in words is "one hundred thirty-four thousand, six hundred forty-three".