136416281 has 2 divisors, whose sum is σ = 136416282. Its totient is φ = 136416280.

The previous prime is 136416277. The next prime is 136416283. The reversal of 136416281 is 182614631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131308681 + 5107600 = 11459^2 + 2260^2 .

It is an emirp because it is prime and its reverse (182614631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136416281 - 2² = 136416277 is a prime.

It is a super-2 number, since 2×136416281² = 37218803443741922, which contains 22 as substring.

Together with 136416283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136416283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68208140 + 68208141.

It is an arithmetic number, because the mean of its divisors is an integer number (68208141).

Almost surely, 2^136416281 is an apocalyptic number.

It is an amenable number.

136416281 is a deficient number, since it is larger than the sum of its proper divisors (1).

136416281 is an equidigital number, since it uses as much as digits as its factorization.

136416281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 136416281 is about 11679.7380535695. The cubic root of 136416281 is about 514.7804776535.

The spelling of 136416281 in words is "one hundred thirty-six million, four hundred sixteen thousand, two hundred eighty-one".