134427 has 4 divisors (see below), whose sum is σ = 179240. Its totient is φ = 89616.

The previous prime is 134417. The next prime is 134437. The reversal of 134427 is 724431.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (134417) and next prime (134437).

It is not a de Polignac number, because 134427 - 2⁶ = 134363 is a prime.

It is a d-powerful number, because it can be written as 1 + 3² + 4⁴ + 4⁷ + 2⁷ + 7⁶ .

It is a D-number.

It is a Duffinian number.

134427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (134417) 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, 22402 + ... + 22407.

It is an arithmetic number, because the mean of its divisors is an integer number (44810).

2¹³⁴⁴²⁷ is an apocalyptic number.

134427 is a deficient number, since it is larger than the sum of its proper divisors (44813).

134427 is an equidigital number, since it uses as much as digits as its factorization.

134427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44812.

The product of its digits is 672, while the sum is 21.

The square root of 134427 is about 366.6428780162. The cubic root of 134427 is about 51.2265964926.

Adding to 134427 its reverse (724431), we get a palindrome (858858).

It can be divided in two parts, 134 and 427, that added together give a triangular number (561 = T₃₃).

The spelling of 134427 in words is "one hundred thirty-four thousand, four hundred twenty-seven".