136261078841 has 2 divisors, whose sum is σ = 136261078842. Its totient is φ = 136261078840.

The previous prime is 136261078763. The next prime is 136261078883. The reversal of 136261078841 is 148870162631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70448307241 + 65812771600 = 265421^2 + 256540^2 .

It is a cyclic number.

It is not a de Polignac number, because 136261078841 - 2³⁴ = 119081209657 is a prime.

It is not a weakly prime, because it can be changed into another prime (136261078441) 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, 68130539420 + 68130539421.

It is an arithmetic number, because the mean of its divisors is an integer number (68130539421).

Almost surely, 2^136261078841 is an apocalyptic number.

It is an amenable number.

136261078841 is a deficient number, since it is larger than the sum of its proper divisors (1).

136261078841 is an equidigital number, since it uses as much as digits as its factorization.

136261078841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 136261078841 in words is "one hundred thirty-six billion, two hundred sixty-one million, seventy-eight thousand, eight hundred forty-one".