136308648 has 128 divisors (see below), whose sum is σ = 405688320. Its totient is φ = 37359360.

The previous prime is 136308637. The next prime is 136308677. The reversal of 136308648 is 846803631.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481515 + ... + 481797.

It is an arithmetic number, because the mean of its divisors is an integer number (3169440).

Almost surely, 2^136308648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136308648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202844160).

136308648 is an abundant number, since it is smaller than the sum of its proper divisors (269379672).

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

136308648 is a wasteful number, since it uses less digits than its factorization.

136308648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 136308648 is about 11675.1294639503. The cubic root of 136308648 is about 514.6450540678.

The spelling of 136308648 in words is "one hundred thirty-six million, three hundred eight thousand, six hundred forty-eight".