135899885 has 16 divisors (see below), whose sum is σ = 179910720. Its totient is φ = 97722240.

The previous prime is 135899867. The next prime is 135899891. The reversal of 135899885 is 588998531.

135899885 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 135899885 - 2¹² = 135895789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135899885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8987 + ... + 18776.

It is an arithmetic number, because the mean of its divisors is an integer number (11244420).

Almost surely, 2^135899885 is an apocalyptic number.

It is an amenable number.

135899885 is a deficient number, since it is larger than the sum of its proper divisors (44010835).

135899885 is a wasteful number, since it uses less digits than its factorization.

135899885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27868.

The product of its digits is 3110400, while the sum is 56.

The square root of 135899885 is about 11657.6106042362. The cubic root of 135899885 is about 514.1300989900.

The spelling of 135899885 in words is "one hundred thirty-five million, eight hundred ninety-nine thousand, eight hundred eighty-five".