136785826253 has 2 divisors, whose sum is σ = 136785826254. Its totient is φ = 136785826252.

The previous prime is 136785826237. The next prime is 136785826273. The reversal of 136785826253 is 352628587631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133606332484 + 3179493769 = 365522^2 + 56387^2 .

It is a cyclic number.

It is not a de Polignac number, because 136785826253 - 2⁴ = 136785826237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136785826213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68392913126 + 68392913127.

It is an arithmetic number, because the mean of its divisors is an integer number (68392913127).

Almost surely, 2^136785826253 is an apocalyptic number.

It is an amenable number.

136785826253 is a deficient number, since it is larger than the sum of its proper divisors (1).

136785826253 is an equidigital number, since it uses as much as digits as its factorization.

136785826253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 56.

The spelling of 136785826253 in words is "one hundred thirty-six billion, seven hundred eighty-five million, eight hundred twenty-six thousand, two hundred fifty-three".