136591730 has 16 divisors (see below), whose sum is σ = 268216704. Its totient is φ = 49669680.

The previous prime is 136591709. The next prime is 136591739. The reversal of 136591730 is 37195631.

136591730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (136591739) 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 7 ways as a sum of consecutive naturals, for example, 620762 + ... + 620981.

It is an arithmetic number, because the mean of its divisors is an integer number (16763544).

Almost surely, 2^136591730 is an apocalyptic number.

136591730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136591730 is a deficient number, since it is larger than the sum of its proper divisors (131624974).

136591730 is a wasteful number, since it uses less digits than its factorization.

136591730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241761.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 136591730 is about 11687.2464678384. The cubic root of 136591730 is about 515.0010745571.

The spelling of 136591730 in words is "one hundred thirty-six million, five hundred ninety-one thousand, seven hundred thirty".