136713200909 has 8 divisors (see below), whose sum is σ = 138314189880. Its totient is φ = 135113654016.

The previous prime is 136713200849. The next prime is 136713200933. The reversal of 136713200909 is 909002317631.

It can be written as a sum of positive squares in 4 ways, for example, as 25560974884 + 111152226025 = 159878^2 + 333395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136713200909 - 2²⁸ = 136444765453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136713200509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169214 + ... + 549599.

It is an arithmetic number, because the mean of its divisors is an integer number (17289273735).

Almost surely, 2^136713200909 is an apocalyptic number.

It is an amenable number.

136713200909 is a deficient number, since it is larger than the sum of its proper divisors (1600988971).

136713200909 is an equidigital number, since it uses as much as digits as its factorization.

136713200909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721039.

The product of its (nonzero) digits is 61236, while the sum is 41.

The spelling of 136713200909 in words is "one hundred thirty-six billion, seven hundred thirteen million, two hundred thousand, nine hundred nine".