134661 has 4 divisors (see below), whose sum is σ = 179552. Its totient is φ = 89772.

The previous prime is 134639. The next prime is 134669. The reversal of 134661 is 166431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 134661 - 2⁶ = 134597 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 134661.

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 3 ways as a sum of consecutive naturals, for example, 22441 + ... + 22446.

It is an arithmetic number, because the mean of its divisors is an integer number (44888).

2¹³⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

134661 is a deficient number, since it is larger than the sum of its proper divisors (44891).

134661 is an equidigital number, since it uses as much as digits as its factorization.

134661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44890.

The product of its digits is 432, while the sum is 21.

The square root of 134661 is about 366.9618508783. The cubic root of 134661 is about 51.2563030122.

The spelling of 134661 in words is "one hundred thirty-four thousand, six hundred sixty-one".