135204603220 has 12 divisors (see below), whose sum is σ = 283929666804. Its totient is φ = 54081841280.

The previous prime is 135204603181. The next prime is 135204603221. The reversal of 135204603220 is 22306402531.

It can be written as a sum of positive squares in 2 ways, for example, as 107742810564 + 27461792656 = 328242^2 + 165716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135204603221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3380115061 + ... + 3380115100.

It is an arithmetic number, because the mean of its divisors is an integer number (23660805567).

Almost surely, 2^135204603220 is an apocalyptic number.

135204603220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135204603220 is an abundant number, since it is smaller than the sum of its proper divisors (148725063584).

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

135204603220 is a wasteful number, since it uses less digits than its factorization.

135204603220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760230170 (or 6760230168 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 135204603220 in words is "one hundred thirty-five billion, two hundred four million, six hundred three thousand, two hundred twenty".