134531 has 4 divisors (see below), whose sum is σ = 139200. Its totient is φ = 129864.

The previous prime is 134513. The next prime is 134581. The reversal of 134531 is 135431.

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

It is a cyclic number.

It is not a de Polignac number, because 134531 - 2¹⁴ = 118147 is a prime.

It is a super-2 number, since 2×134531² = 36197179922, which contains 22 as substring.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (134581) 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 3 ways as a sum of consecutive naturals, for example, 2291 + ... + 2348.

It is an arithmetic number, because the mean of its divisors is an integer number (34800).

2¹³⁴⁵³¹ is an apocalyptic number.

134531 is a deficient number, since it is larger than the sum of its proper divisors (4669).

134531 is an equidigital number, since it uses as much as digits as its factorization.

134531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its digits is 180, while the sum is 17.

The square root of 134531 is about 366.7846779788. The cubic root of 134531 is about 51.2398036428.

Adding to 134531 its reverse (135431), we get a palindrome (269962).

Subtracting 134531 from its reverse (135431), we obtain a square (900 = 30²).

The spelling of 134531 in words is "one hundred thirty-four thousand, five hundred thirty-one".