135394688 has 96 divisors (see below), whose sum is σ = 319188600. Its totient is φ = 56709120.

The previous prime is 135394687. The next prime is 135394709. The reversal of 135394688 is 886493531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135394687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237668 + ... + 238236.

Almost surely, 2^135394688 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 135394688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159594300).

135394688 is an abundant number, since it is smaller than the sum of its proper divisors (183793912).

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

135394688 is a wasteful number, since it uses less digits than its factorization.

135394688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 595 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 135394688 is about 11635.9223098128. The cubic root of 135394688 is about 513.4922286919.

The spelling of 135394688 in words is "one hundred thirty-five million, three hundred ninety-four thousand, six hundred eighty-eight".