136680241 has 2 divisors, whose sum is σ = 136680242. Its totient is φ = 136680240.

The previous prime is 136680239. The next prime is 136680259. The reversal of 136680241 is 142086631.

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., 101929216 + 34751025 = 10096^2 + 5895^2 .

It is a cyclic number.

It is not a de Polignac number, because 136680241 - 2¹ = 136680239 is a prime.

Together with 136680239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (136683241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68340120 + 68340121.

It is an arithmetic number, because the mean of its divisors is an integer number (68340121).

Almost surely, 2^136680241 is an apocalyptic number.

It is an amenable number.

136680241 is a deficient number, since it is larger than the sum of its proper divisors (1).

136680241 is an equidigital number, since it uses as much as digits as its factorization.

136680241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 136680241 is about 11691.0325035901. The cubic root of 136680241 is about 515.1122902159.

The spelling of 136680241 in words is "one hundred thirty-six million, six hundred eighty thousand, two hundred forty-one".