135381008 has 40 divisors (see below), whose sum is σ = 301373568. Its totient is φ = 57710592.

The previous prime is 135380989. The next prime is 135381049. The reversal of 135381008 is 800183531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18485 + ... + 24747.

Almost surely, 2^135381008 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 135381008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150686784).

135381008 is an abundant number, since it is smaller than the sum of its proper divisors (165992560).

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

135381008 is a wasteful number, since it uses less digits than its factorization.

135381008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 135381008 is about 11635.3344601692. The cubic root of 135381008 is about 513.4749340442.

The spelling of 135381008 in words is "one hundred thirty-five million, three hundred eighty-one thousand, eight".