136282681 has 2 divisors, whose sum is σ = 136282682. Its totient is φ = 136282680.

The previous prime is 136282673. The next prime is 136282691. The reversal of 136282681 is 186282631.

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., 78765625 + 57517056 = 8875^2 + 7584^2 .

It is a cyclic number.

It is not a de Polignac number, because 136282681 - 2³ = 136282673 is a prime.

It is a super-2 number, since 2×136282681² = 37145938281095522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136282681.

It is not a weakly prime, because it can be changed into another prime (136282691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68141340 + 68141341.

It is an arithmetic number, because the mean of its divisors is an integer number (68141341).

Almost surely, 2^136282681 is an apocalyptic number.

It is an amenable number.

136282681 is a deficient number, since it is larger than the sum of its proper divisors (1).

136282681 is an equidigital number, since it uses as much as digits as its factorization.

136282681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 136282681 is about 11674.0173462266. The cubic root of 136282681 is about 514.6123717765.

The spelling of 136282681 in words is "one hundred thirty-six million, two hundred eighty-two thousand, six hundred eighty-one".