135528786 has 36 divisors (see below), whose sum is σ = 309929022. Its totient is φ = 42796512.

The previous prime is 135528781. The next prime is 135528787. The reversal of 135528786 is 687825531.

135528786 is a `hidden beast` number, since 13 + 552 + 8 + 7 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78057225 + 57471561 = 8835^2 + 7581^2 .

It is not an unprimeable number, because it can be changed into a prime (135528781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3931 + ... + 16926.

Almost surely, 2^135528786 is an apocalyptic number.

135528786 is an abundant number, since it is smaller than the sum of its proper divisors (174400236).

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

135528786 is a wasteful number, since it uses less digits than its factorization.

135528786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20903 (or 20881 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 135528786 is about 11641.6831257340. The cubic root of 135528786 is about 513.6616975769.

The spelling of 135528786 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, seven hundred eighty-six".