136680048 has 100 divisors (see below), whose sum is σ = 398086128. Its totient is φ = 45273600.

The previous prime is 136680043. The next prime is 136680121. The reversal of 136680048 is 840086631.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 136679994 and 136680021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136680043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 340648 + ... + 341048.

Almost surely, 2^136680048 is an apocalyptic number.

136680048 is a gapful number since it is divisible by the number (18) 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 136680048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199043064).

136680048 is an abundant number, since it is smaller than the sum of its proper divisors (261406080).

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

136680048 is a wasteful number, since it uses less digits than its factorization.

136680048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 136680048 is about 11691.0242493975. The cubic root of 136680048 is about 515.1120477602.

The spelling of 136680048 in words is "one hundred thirty-six million, six hundred eighty thousand, forty-eight".