135135131 has 4 divisors (see below), whose sum is σ = 135369912. Its totient is φ = 134900352.

The previous prime is 135135113. The next prime is 135135167. The reversal of 135135131 is 131531531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131531531 = 53 ⋅2481727.

It is a cyclic number.

It is not a de Polignac number, because 135135131 - 2⁶ = 135135067 is a prime.

It is a super-2 number, since 2×135135131² = 36523007260774322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135135097 and 135135106.

It is not an unprimeable number, because it can be changed into a prime (135155131) 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, 116525 + ... + 117678.

It is an arithmetic number, because the mean of its divisors is an integer number (33842478).

Almost surely, 2^135135131 is an apocalyptic number.

135135131 is a deficient number, since it is larger than the sum of its proper divisors (234781).

135135131 is an equidigital number, since it uses as much as digits as its factorization.

135135131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234780.

The product of its digits is 675, while the sum is 23.

The square root of 135135131 is about 11624.7636965230. The cubic root of 135135131 is about 513.1638904505.

Adding to 135135131 its reverse (131531531), we get a palindrome (266666662).

The spelling of 135135131 in words is "one hundred thirty-five million, one hundred thirty-five thousand, one hundred thirty-one".