135224231652 has 48 divisors (see below), whose sum is σ = 350621920320. Its totient is φ = 45069526656.

The previous prime is 135224231609. The next prime is 135224231669. The reversal of 135224231652 is 256132422531.

135224231652 is a `hidden beast` number, since 1 + 3 + 52 + 242 + 316 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928668 + ... + 1064364.

It is an arithmetic number, because the mean of its divisors is an integer number (7304623340).

Almost surely, 2^135224231652 is an apocalyptic number.

135224231652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135224231652 is an abundant number, since it is smaller than the sum of its proper divisors (215397688668).

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

135224231652 is a wasteful number, since it uses less digits than its factorization.

135224231652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144937 (or 144929 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 135224231652 in words is "one hundred thirty-five billion, two hundred twenty-four million, two hundred thirty-one thousand, six hundred fifty-two".