136878056 has 16 divisors (see below), whose sum is σ = 293310240. Its totient is φ = 58662000.

The previous prime is 136878041. The next prime is 136878097. The reversal of 136878056 is 650878631.

It is a junction number, because it is equal to n+sod(n) for n = 136877998 and 136878016.

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, 1222070 + ... + 1222181.

It is an arithmetic number, because the mean of its divisors is an integer number (18331890).

Almost surely, 2^136878056 is an apocalyptic number.

It is an amenable number.

136878056 is an abundant number, since it is smaller than the sum of its proper divisors (156432184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136878056 is a wasteful number, since it uses less digits than its factorization.

136878056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444264 (or 2444260 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 136878056 is about 11699.4895615151. The cubic root of 136878056 is about 515.3606748605.

The spelling of 136878056 in words is "one hundred thirty-six million, eight hundred seventy-eight thousand, fifty-six".