134645 has 8 divisors (see below), whose sum is σ = 184704. Its totient is φ = 92304.

The previous prime is 134639. The next prime is 134669. The reversal of 134645 is 546431.

It is a happy number.

134645 is nontrivially palindromic in base 13.

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

It is a cyclic number.

It is not a de Polignac number, because 134645 - 2⁶ = 134581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889 + ... + 1958.

It is an arithmetic number, because the mean of its divisors is an integer number (23088).

2¹³⁴⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

134645 is a deficient number, since it is larger than the sum of its proper divisors (50059).

134645 is an equidigital number, since it uses as much as digits as its factorization.

134645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859.

The product of its digits is 1440, while the sum is 23.

The square root of 134645 is about 366.9400495994. The cubic root of 134645 is about 51.2542728938.

The spelling of 134645 in words is "one hundred thirty-four thousand, six hundred forty-five".