136878080 has 48 divisors (see below), whose sum is σ = 328451760. Its totient is φ = 54747136.

The previous prime is 136878041. The next prime is 136878097. The reversal of 136878080 is 80878631.

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, 3557 + ... + 16923.

It is an arithmetic number, because the mean of its divisors is an integer number (6842745).

Almost surely, 2^136878080 is an apocalyptic number.

136878080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164225880).

136878080 is an abundant number, since it is smaller than the sum of its proper divisors (191573680).

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

136878080 is an equidigital number, since it uses as much as digits as its factorization.

136878080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13394 (or 13374 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 136878080 is about 11699.4905872008. The cubic root of 136878080 is about 515.3607049814.

The spelling of 136878080 in words is "one hundred thirty-six million, eight hundred seventy-eight thousand, eighty".