136213440546226 has 4 divisors (see below), whose sum is σ = 204320160819342. Its totient is φ = 68106720273112.

The previous prime is 136213440546223. The next prime is 136213440546241. The reversal of 136213440546226 is 622645044312631.

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

It can be written as a sum of positive squares in only one way, i.e., 113110988683225 + 23102451863001 = 10635365^2 + 4806501^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 136213440546226.

It is not an unprimeable number, because it can be changed into a prime (136213440546223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34053360136555 + ... + 34053360136558.

Almost surely, 2^{136213440546226} is an apocalyptic number.

136213440546226 is a deficient number, since it is larger than the sum of its proper divisors (68106720273116).

136213440546226 is an equidigital number, since it uses as much as digits as its factorization.

136213440546226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68106720273115.

The product of its (nonzero) digits is 4976640, while the sum is 49.

Adding to 136213440546226 its reverse (622645044312631), we get a palindrome (758858484858857).

The spelling of 136213440546226 in words is "one hundred thirty-six trillion, two hundred thirteen billion, four hundred forty million, five hundred forty-six thousand, two hundred twenty-six".