134665 has 8 divisors (see below), whose sum is σ = 168768. Its totient is φ = 102960.

The previous prime is 134639. The next prime is 134669. The reversal of 134665 is 566431.

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

It is not a de Polignac number, because 134665 - 2⁹ = 134153 is a prime.

It is a Duffinian number.

134665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (134669) 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, 471 + ... + 700.

It is an arithmetic number, because the mean of its divisors is an integer number (21096).

2¹³⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

134665 is a deficient number, since it is larger than the sum of its proper divisors (34103).

134665 is a wasteful number, since it uses less digits than its factorization.

134665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199.

The product of its digits is 2160, while the sum is 25.

The square root of 134665 is about 366.9673009956. The cubic root of 134665 is about 51.2568105167.

The spelling of 134665 in words is "one hundred thirty-four thousand, six hundred sixty-five".