135899065 has 8 divisors (see below), whose sum is σ = 170169408. Its totient is φ = 103992240.

The previous prime is 135899059. The next prime is 135899081. The reversal of 135899065 is 560998531.

135899065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135899065 - 2⁷ = 135898937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590751 + ... + 590980.

It is an arithmetic number, because the mean of its divisors is an integer number (21271176).

Almost surely, 2^135899065 is an apocalyptic number.

It is an amenable number.

135899065 is a deficient number, since it is larger than the sum of its proper divisors (34270343).

135899065 is a wasteful number, since it uses less digits than its factorization.

135899065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181759.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 135899065 is about 11657.5754340257. The cubic root of 135899065 is about 514.1290649260.

The spelling of 135899065 in words is "one hundred thirty-five million, eight hundred ninety-nine thousand, sixty-five".