135894528 has 240 divisors, whose sum is σ = 490254336. Its totient is φ = 35205120.

The previous prime is 135894527. The next prime is 135894529. The reversal of 135894528 is 825498531.

135894528 is a `hidden beast` number, since 1 + 3 + 589 + 45 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (135894527) and next prime (135894529).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135894527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354625 + ... + 355007.

Almost surely, 2^135894528 is an apocalyptic number.

135894528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135894528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245127168).

135894528 is an abundant number, since it is smaller than the sum of its proper divisors (354359808).

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

135894528 is a wasteful number, since it uses less digits than its factorization.

135894528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 406 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 135894528 is about 11657.3808379069. The cubic root of 135894528 is about 514.1233434505.

The spelling of 135894528 in words is "one hundred thirty-five million, eight hundred ninety-four thousand, five hundred twenty-eight".