136684746 has 120 divisors (see below), whose sum is σ = 355333440. Its totient is φ = 39132720.

The previous prime is 136684741. The next prime is 136684759. The reversal of 136684746 is 647486631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136684741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 372255 + ... + 372621.

It is an arithmetic number, because the mean of its divisors is an integer number (2961112).

Almost surely, 2^136684746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136684746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177666720).

136684746 is an abundant number, since it is smaller than the sum of its proper divisors (218648694).

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

136684746 is a wasteful number, since it uses less digits than its factorization.

136684746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 402 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 136684746 is about 11691.2251710417. The cubic root of 136684746 is about 515.1179495449.

The spelling of 136684746 in words is "one hundred thirty-six million, six hundred eighty-four thousand, seven hundred forty-six".