136855868 has 12 divisors (see below), whose sum is σ = 245339472. Its totient is φ = 66758880.

The previous prime is 136855867. The next prime is 136855871. The reversal of 136855868 is 868558631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136855867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417080 + ... + 417407.

It is an arithmetic number, because the mean of its divisors is an integer number (20444956).

Almost surely, 2^136855868 is an apocalyptic number.

It is an amenable number.

136855868 is a deficient number, since it is larger than the sum of its proper divisors (108483604).

136855868 is a wasteful number, since it uses less digits than its factorization.

136855868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834532 (or 834530 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The square root of 136855868 is about 11698.5412765866. The cubic root of 136855868 is about 515.3328266164.

The spelling of 136855868 in words is "one hundred thirty-six million, eight hundred fifty-five thousand, eight hundred sixty-eight".