135285570 has 72 divisors (see below), whose sum is σ = 409183164. Its totient is φ = 30921408.

The previous prime is 135285569. The next prime is 135285589. The reversal of 135285570 is 75582531.

135285570 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 85 + 570 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 134861769 + 423801 = 11613^2 + 651^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10929 + ... + 19748.

Almost surely, 2^135285570 is an apocalyptic number.

135285570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135285570 is an abundant number, since it is smaller than the sum of its proper divisors (273897594).

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

135285570 is a wasteful number, since it uses less digits than its factorization.

135285570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30704 (or 30694 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 135285570 is about 11631.2325228241. The cubic root of 135285570 is about 513.3542461636.

The spelling of 135285570 in words is "one hundred thirty-five million, two hundred eighty-five thousand, five hundred seventy".