135787221100 has 36 divisors (see below), whose sum is σ = 294906765384. Its totient is φ = 54269082880.

The previous prime is 135787221091. The next prime is 135787221113. The reversal of 135787221100 is 1122787531.

It is a self number, because there is not a number n which added to its sum of digits gives 135787221100.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 453277 + ... + 690676.

It is an arithmetic number, because the mean of its divisors is an integer number (8191854594).

Almost surely, 2^135787221100 is an apocalyptic number.

135787221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135787221100 is an abundant number, since it is smaller than the sum of its proper divisors (159119544284).

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

135787221100 is a wasteful number, since it uses less digits than its factorization.

135787221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145154 (or 1145147 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 135787221100 in words is "one hundred thirty-five billion, seven hundred eighty-seven million, two hundred twenty-one thousand, one hundred".