135000531 has 12 divisors (see below), whose sum is σ = 200271552. Its totient is φ = 87567696.

The previous prime is 135000527. The next prime is 135000559.

It is a happy number.

135000531 is a `hidden beast` number, since 135 + 0 + 0 + 0 + 531 = 666.

135000531 is nontrivially palindromic in base 10.

135000531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135000531 - 2² = 135000527 is a prime.

It is a super-2 number, since 2×135000531² = 36450286740563922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135000571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202371 + ... + 203036.

It is an arithmetic number, because the mean of its divisors is an integer number (16689296).

Almost surely, 2^135000531 is an apocalyptic number.

135000531 is a deficient number, since it is larger than the sum of its proper divisors (65271021).

135000531 is a wasteful number, since it uses less digits than its factorization.

135000531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405450 (or 405447 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 135000531 is about 11618.9728892015. The cubic root of 135000531 is about 512.9934565927.

It can be divided in two parts, 135000 and 531, that added together give a palindrome (135531).

The spelling of 135000531 in words is "one hundred thirty-five million, five hundred thirty-one", and thus it is an aban number.