135889799 has 4 divisors (see below), whose sum is σ = 135921720. Its totient is φ = 135857880.

The previous prime is 135889783. The next prime is 135889849. The reversal of 135889799 is 997988531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135889799 - 2⁴ = 135889783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135889769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8372 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (33980430).

Almost surely, 2^135889799 is an apocalyptic number.

135889799 is a deficient number, since it is larger than the sum of its proper divisors (31921).

135889799 is an equidigital number, since it uses as much as digits as its factorization.

135889799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31920.

The product of its digits is 4898880, while the sum is 59.

The square root of 135889799 is about 11657.1780032733. The cubic root of 135889799 is about 514.1173797139.

The spelling of 135889799 in words is "one hundred thirty-five million, eight hundred eighty-nine thousand, seven hundred ninety-nine".