135189087 has 16 divisors (see below), whose sum is σ = 198193152. Its totient is φ = 81285120.

The previous prime is 135189077. The next prime is 135189091. The reversal of 135189087 is 780981531.

135189087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135189087 - 2⁴ = 135189071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135189007) 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, 11938 + ... + 20319.

It is an arithmetic number, because the mean of its divisors is an integer number (12387072).

Almost surely, 2^135189087 is an apocalyptic number.

135189087 is a deficient number, since it is larger than the sum of its proper divisors (63004065).

135189087 is a wasteful number, since it uses less digits than its factorization.

135189087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32398.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 135189087 is about 11627.0842002628. The cubic root of 135189087 is about 513.2321790996.

The spelling of 135189087 in words is "one hundred thirty-five million, one hundred eighty-nine thousand, eighty-seven".