134111531 has 4 divisors (see below), whose sum is σ = 134713152. Its totient is φ = 133509912.

The previous prime is 134111513. The next prime is 134111561. The reversal of 134111531 is 135111431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134111531 is a prime.

It is a super-2 number, since 2×134111531² = 35971805494327922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134111561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300476 + ... + 300921.

It is an arithmetic number, because the mean of its divisors is an integer number (33678288).

Almost surely, 2^134111531 is an apocalyptic number.

134111531 is a deficient number, since it is larger than the sum of its proper divisors (601621).

134111531 is an equidigital number, since it uses as much as digits as its factorization.

134111531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601620.

The product of its digits is 180, while the sum is 20.

The square root of 134111531 is about 11580.6533062690. The cubic root of 134111531 is about 511.8649279009.

Adding to 134111531 its reverse (135111431), we get a palindrome (269222962).

The spelling of 134111531 in words is "one hundred thirty-four million, one hundred eleven thousand, five hundred thirty-one".