134538 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 42176.

The previous prime is 134513. The next prime is 134581. The reversal of 134538 is 835431.

It is an unprimeable number.

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, 558 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2¹³⁴⁵³⁸ is an apocalyptic number.

134538 is an abundant number, since it is smaller than the sum of its proper divisors (150582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134538 is a wasteful number, since it uses less digits than its factorization.

134538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its digits is 1440, while the sum is 24.

The square root of 134538 is about 366.7942202380. The cubic root of 134538 is about 51.2406923410.

Adding to 134538 its reverse (835431), we get a palindrome (969969).

The spelling of 134538 in words is "one hundred thirty-four thousand, five hundred thirty-eight".