135168868 has 24 divisors (see below), whose sum is σ = 241972920. Its totient is φ = 66044160.

The previous prime is 135168799. The next prime is 135168911. The reversal of 135168868 is 868861531.

It can be written as a sum of positive squares in 4 ways, for example, as 12446784 + 122722084 = 3528^2 + 11078^2 .

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, 58438 + ... + 60706.

It is an arithmetic number, because the mean of its divisors is an integer number (10082205).

Almost surely, 2^135168868 is an apocalyptic number.

It is an amenable number.

135168868 is a deficient number, since it is larger than the sum of its proper divisors (106804052).

135168868 is a wasteful number, since it uses less digits than its factorization.

135168868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607 (or 2605 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 135168868 is about 11626.2146892271. The cubic root of 135168868 is about 513.2065913370.

The spelling of 135168868 in words is "one hundred thirty-five million, one hundred sixty-eight thousand, eight hundred sixty-eight".