135928859 has 6 divisors (see below), whose sum is σ = 149409540. Its totient is φ = 123571580.

The previous prime is 135928823. The next prime is 135928921. The reversal of 135928859 is 958829531.

It is a de Polignac number, because none of the positive numbers 2^k-135928859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135928259) 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 5 ways as a sum of consecutive naturals, for example, 561569 + ... + 561810.

It is an arithmetic number, because the mean of its divisors is an integer number (24901590).

Almost surely, 2^135928859 is an apocalyptic number.

135928859 is a deficient number, since it is larger than the sum of its proper divisors (13480681).

135928859 is a wasteful number, since it uses less digits than its factorization.

135928859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123401 (or 1123390 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The square root of 135928859 is about 11658.8532454955. The cubic root of 135928859 is about 514.1666340883.

The spelling of 135928859 in words is "one hundred thirty-five million, nine hundred twenty-eight thousand, eight hundred fifty-nine".