134945 has 8 divisors (see below), whose sum is σ = 163944. Its totient is φ = 106624.

The previous prime is 134923. The next prime is 134947. The reversal of 134945 is 549431.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 80656 = 233^2 + 284^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134945 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (20493).

2¹³⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

134945 is a deficient number, since it is larger than the sum of its proper divisors (28999).

134945 is a wasteful number, since it uses less digits than its factorization.

134945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its digits is 2160, while the sum is 26.

The square root of 134945 is about 367.3486082729. The cubic root of 134945 is about 51.2923108853.

The spelling of 134945 in words is "one hundred thirty-four thousand, nine hundred forty-five".