136175521213 has 2 divisors, whose sum is σ = 136175521214. Its totient is φ = 136175521212.

The previous prime is 136175521133. The next prime is 136175521247. The reversal of 136175521213 is 312125571631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112025428804 + 24150092409 = 334702^2 + 155403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136175521213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136175521513) 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 as a sum of consecutive naturals, namely, 68087760606 + 68087760607.

It is an arithmetic number, because the mean of its divisors is an integer number (68087760607).

Almost surely, 2^136175521213 is an apocalyptic number.

It is an amenable number.

136175521213 is a deficient number, since it is larger than the sum of its proper divisors (1).

136175521213 is an equidigital number, since it uses as much as digits as its factorization.

136175521213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The spelling of 136175521213 in words is "one hundred thirty-six billion, one hundred seventy-five million, five hundred twenty-one thousand, two hundred thirteen".