136787320 has 32 divisors (see below), whose sum is σ = 311487120. Its totient is φ = 54054400.

The previous prime is 136787297. The next prime is 136787323. The reversal of 136787320 is 23787631.

It is a self number, because there is not a number n which added to its sum of digits gives 136787320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136787323) 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 7 ways as a sum of consecutive naturals, for example, 17281 + ... + 23920.

Almost surely, 2^136787320 is an apocalyptic number.

136787320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136787320 is an abundant number, since it is smaller than the sum of its proper divisors (174699800).

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

136787320 is a wasteful number, since it uses less digits than its factorization.

136787320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41295 (or 41291 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 136787320 is about 11695.6111426466. The cubic root of 136787320 is about 515.2467727394.

The spelling of 136787320 in words is "one hundred thirty-six million, seven hundred eighty-seven thousand, three hundred twenty".