135528789 has 16 divisors (see below), whose sum is σ = 197328384. Its totient is φ = 82057200.

The previous prime is 135528787. The next prime is 135528793. The reversal of 135528789 is 987825531.

It is not a de Polignac number, because 135528789 - 2¹ = 135528787 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59302 + ... + 61544.

It is an arithmetic number, because the mean of its divisors is an integer number (12333024).

Almost surely, 2^135528789 is an apocalyptic number.

It is an amenable number.

135528789 is a deficient number, since it is larger than the sum of its proper divisors (61799595).

135528789 is a wasteful number, since it uses less digits than its factorization.

135528789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088.

The product of its digits is 604800, while the sum is 48.

The square root of 135528789 is about 11641.6832545814. The cubic root of 135528789 is about 513.6617013670.

The spelling of 135528789 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, seven hundred eighty-nine".