136878055 has 4 divisors (see below), whose sum is σ = 164253672. Its totient is φ = 109502440.

The previous prime is 136878041. The next prime is 136878097. The reversal of 136878055 is 550878631.

136878055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550878631 = 1181 ⋅466451.

It is not a de Polignac number, because 136878055 - 2⁵ = 136878023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13687801 + ... + 13687810.

It is an arithmetic number, because the mean of its divisors is an integer number (41063418).

Almost surely, 2^136878055 is an apocalyptic number.

136878055 is a deficient number, since it is larger than the sum of its proper divisors (27375617).

136878055 is an equidigital number, since it uses as much as digits as its factorization.

136878055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27375616.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 136878055 is about 11699.4895187782. The cubic root of 136878055 is about 515.3606736055.

The spelling of 136878055 in words is "one hundred thirty-six million, eight hundred seventy-eight thousand, fifty-five".