135365134220 has 24 divisors (see below), whose sum is σ = 284422111008. Its totient is φ = 54116467200.

The previous prime is 135365134189. The next prime is 135365134241. The reversal of 135365134220 is 22431563531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1811621 + ... + 1884860.

It is an arithmetic number, because the mean of its divisors is an integer number (11850921292).

Almost surely, 2^135365134220 is an apocalyptic number.

135365134220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135365134220 is an abundant number, since it is smaller than the sum of its proper divisors (149056976788).

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

135365134220 is a wasteful number, since it uses less digits than its factorization.

135365134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698321 (or 3698319 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 135365134220 its reverse (22431563531), we get a palindrome (157796697751).

The spelling of 135365134220 in words is "one hundred thirty-five billion, three hundred sixty-five million, one hundred thirty-four thousand, two hundred twenty".