135028656 has 120 divisors (see below), whose sum is σ = 436645664. Its totient is φ = 38154240.

The previous prime is 135028627. The next prime is 135028661. The reversal of 135028656 is 656820531.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 135028656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97086 + ... + 98466.

Almost surely, 2^135028656 is an apocalyptic number.

135028656 is a gapful number since it is divisible by the number (16) 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 135028656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218322832).

135028656 is an abundant number, since it is smaller than the sum of its proper divisors (301617008).

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

135028656 is a wasteful number, since it uses less digits than its factorization.

135028656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 135028656 is about 11620.1831310870. The cubic root of 135028656 is about 513.0290785245.

The spelling of 135028656 in words is "one hundred thirty-five million, twenty-eight thousand, six hundred fifty-six".