135220415532 has 12 divisors (see below), whose sum is σ = 315514302936. Its totient is φ = 45073471840.

The previous prime is 135220415489. The next prime is 135220415549. The reversal of 135220415532 is 235514022531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 135220415493 and 135220415502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5634183969 + ... + 5634183992.

It is an arithmetic number, because the mean of its divisors is an integer number (26292858578).

Almost surely, 2^135220415532 is an apocalyptic number.

135220415532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135220415532 is an abundant number, since it is smaller than the sum of its proper divisors (180293887404).

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

135220415532 is a wasteful number, since it uses less digits than its factorization.

135220415532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11268367968 (or 11268367966 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 135220415532 in words is "one hundred thirty-five billion, two hundred twenty million, four hundred fifteen thousand, five hundred thirty-two".