135859087 has 32 divisors (see below), whose sum is σ = 180496512. Its totient is φ = 99201024.

The previous prime is 135859067. The next prime is 135859099. The reversal of 135859087 is 780958531.

It is not a de Polignac number, because 135859087 - 2¹⁹ = 135334799 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135859037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81163 + ... + 82819.

It is an arithmetic number, because the mean of its divisors is an integer number (5640516).

Almost surely, 2^135859087 is an apocalyptic number.

135859087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

135859087 is a deficient number, since it is larger than the sum of its proper divisors (44637425).

135859087 is a wasteful number, since it uses less digits than its factorization.

135859087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 135859087 is about 11655.8606288854. The cubic root of 135859087 is about 514.0786454779.

The spelling of 135859087 in words is "one hundred thirty-five million, eight hundred fifty-nine thousand, eighty-seven".