135421650138 has 8 divisors (see below), whose sum is σ = 270843300288. Its totient is φ = 45140550044.

The previous prime is 135421650107. The next prime is 135421650181. The reversal of 135421650138 is 831056124531.

135421650138 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

135421650138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 135421650096 and 135421650105.

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, 11285137506 + ... + 11285137517.

It is an arithmetic number, because the mean of its divisors is an integer number (33855412536).

Almost surely, 2^135421650138 is an apocalyptic number.

135421650138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135421650138 is a wasteful number, since it uses less digits than its factorization.

135421650138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22570275028.

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 135421650138 its reverse (831056124531), we get a palindrome (966477774669).

The spelling of 135421650138 in words is "one hundred thirty-five billion, four hundred twenty-one million, six hundred fifty thousand, one hundred thirty-eight".