136500078 has 64 divisors (see below), whose sum is σ = 334720512. Its totient is φ = 36516480.

The previous prime is 136500061. The next prime is 136500107. The reversal of 136500078 is 870005631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16276 + ... + 23192.

It is an arithmetic number, because the mean of its divisors is an integer number (5230008).

Almost surely, 2^136500078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136500078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167360256).

136500078 is an abundant number, since it is smaller than the sum of its proper divisors (198220434).

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

136500078 is a wasteful number, since it uses less digits than its factorization.

136500078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 136500078 is about 11683.3247836393. The cubic root of 136500078 is about 514.8858615312.

The spelling of 136500078 in words is "one hundred thirty-six million, five hundred thousand, seventy-eight".