135910868 has 12 divisors (see below), whose sum is σ = 242332020. Its totient is φ = 66673152.

The previous prime is 135910861. The next prime is 135910877. The reversal of 135910868 is 868019531.

It can be written as a sum of positive squares in 2 ways, for example, as 122500624 + 13410244 = 11068^2 + 3662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135910861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320333 + ... + 320756.

It is an arithmetic number, because the mean of its divisors is an integer number (20194335).

Almost surely, 2^135910868 is an apocalyptic number.

It is an amenable number.

135910868 is a deficient number, since it is larger than the sum of its proper divisors (106421152).

135910868 is a wasteful number, since it uses less digits than its factorization.

135910868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641146 (or 641144 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 135910868 is about 11658.0816603762. The cubic root of 135910868 is about 514.1439487412.

The spelling of 135910868 in words is "one hundred thirty-five million, nine hundred ten thousand, eight hundred sixty-eight".