134445 has 8 divisors (see below), whose sum is σ = 215136. Its totient is φ = 71696.

The previous prime is 134443. The next prime is 134471. The reversal of 134445 is 544431.

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 134445 - 2¹ = 134443 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 4 + 4⁸ + 4⁸ + 5⁵ .

134445 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134443) 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, 4467 + ... + 4496.

It is an arithmetic number, because the mean of its divisors is an integer number (26892).

2¹³⁴⁴⁴⁵ is an apocalyptic number.

134445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134445 is a deficient number, since it is larger than the sum of its proper divisors (80691).

134445 is an equidigital number, since it uses as much as digits as its factorization.

134445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971.

The product of its digits is 960, while the sum is 21.

The square root of 134445 is about 366.6674242416. The cubic root of 134445 is about 51.2288828328.

Adding to 134445 its reverse (544431), we get a palindrome (678876).

The spelling of 134445 in words is "one hundred thirty-four thousand, four hundred forty-five".