136685536 has 48 divisors (see below), whose sum is σ = 294764400. Its totient is φ = 62005248.

The previous prime is 136685533. The next prime is 136685537. The reversal of 136685536 is 635586631.

It is a junction number, because it is equal to n+sod(n) for n = 136685492 and 136685501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136685533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21760 + ... + 27328.

It is an arithmetic number, because the mean of its divisors is an integer number (6140925).

Almost surely, 2^136685536 is an apocalyptic number.

136685536 is a gapful number since it is divisible by the number (16) 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 136685536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147382200).

136685536 is an abundant number, since it is smaller than the sum of its proper divisors (158078864).

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

136685536 is a wasteful number, since it uses less digits than its factorization.

136685536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651 (or 5643 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 136685536 is about 11691.2589570157. The cubic root of 136685536 is about 515.1189419561.

It can be divided in two parts, 13 and 6685536, that multiplied together give a palindrome (86911968).

The spelling of 136685536 in words is "one hundred thirty-six million, six hundred eighty-five thousand, five hundred thirty-six".