136556244 has 216 divisors, whose sum is σ = 418279680. Its totient is φ = 37403520.

The previous prime is 136556243. The next prime is 136556269. The reversal of 136556244 is 442655631.

136556244 is a `hidden beast` number, since 1 + 365 + 56 + 244 = 666.

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 = 136556199 and 136556208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136556243) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 2905429 + ... + 2905475.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 2^136556244 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 136556244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209139840).

136556244 is an abundant number, since it is smaller than the sum of its proper divisors (281723436).

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

136556244 is a wasteful number, since it uses less digits than its factorization.

136556244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 115 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 136556244 is about 11685.7282186435. The cubic root of 136556244 is about 514.9564722692.

The spelling of 136556244 in words is "one hundred thirty-six million, five hundred fifty-six thousand, two hundred forty-four".