135409648 has 60 divisors (see below), whose sum is σ = 301011984. Its totient is φ = 58854400.

The previous prime is 135409627. The next prime is 135409663. The reversal of 135409648 is 846904531.

It is a self number, because there is not a number n which added to its sum of digits gives 135409648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43008 + ... + 46048.

Almost surely, 2^135409648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135409648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150505992).

135409648 is an abundant number, since it is smaller than the sum of its proper divisors (165602336).

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

135409648 is a wasteful number, since it uses less digits than its factorization.

135409648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3077 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 135409648 is about 11636.5651289373. The cubic root of 135409648 is about 513.5111402187.

The spelling of 135409648 in words is "one hundred thirty-five million, four hundred nine thousand, six hundred forty-eight".