136044608197 has 4 divisors (see below), whose sum is σ = 136084056300. Its totient is φ = 136005160096.

The previous prime is 136044608191. The next prime is 136044608201. The reversal of 136044608197 is 791806440631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55244271681 + 80800336516 = 235041^2 + 284254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136044608197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136044608197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136044608191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19718878 + ... + 19725775.

It is an arithmetic number, because the mean of its divisors is an integer number (34021014075).

Almost surely, 2^136044608197 is an apocalyptic number.

It is an amenable number.

136044608197 is a deficient number, since it is larger than the sum of its proper divisors (39448103).

136044608197 is an equidigital number, since it uses as much as digits as its factorization.

136044608197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39448102.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 136044608197 in words is "one hundred thirty-six billion, forty-four million, six hundred eight thousand, one hundred ninety-seven".