135192715220 has 96 divisors (see below), whose sum is σ = 318818094336. Its totient is φ = 47884953600.

The previous prime is 135192715213. The next prime is 135192715223. The reversal of 135192715220 is 22517291531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135192715223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335315 + ... + 618725.

It is an arithmetic number, because the mean of its divisors is an integer number (3321021816).

Almost surely, 2^135192715220 is an apocalyptic number.

135192715220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135192715220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159409047168).

135192715220 is an abundant number, since it is smaller than the sum of its proper divisors (183625379116).

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

135192715220 is a wasteful number, since it uses less digits than its factorization.

135192715220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283521 (or 283519 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 135192715220 in words is "one hundred thirty-five billion, one hundred ninety-two million, seven hundred fifteen thousand, two hundred twenty".