135131252232 has 16 divisors (see below), whose sum is σ = 337828130640. Its totient is φ = 45043750736.

The previous prime is 135131252227. The next prime is 135131252239. The reversal of 135131252232 is 232252131531.

It is a self number, because there is not a number n which added to its sum of digits gives 135131252232.

It is not an unprimeable number, because it can be changed into a prime (135131252239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815234398 + ... + 2815234445.

It is an arithmetic number, because the mean of its divisors is an integer number (21114258165).

Almost surely, 2^135131252232 is an apocalyptic number.

135131252232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135131252232 is an abundant number, since it is smaller than the sum of its proper divisors (202696878408).

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

135131252232 is a wasteful number, since it uses less digits than its factorization.

135131252232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630468852 (or 5630468848 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 135131252232 its reverse (232252131531), we get a palindrome (367383383763).

The spelling of 135131252232 in words is "one hundred thirty-five billion, one hundred thirty-one million, two hundred fifty-two thousand, two hundred thirty-two".