136384481 has 2 divisors, whose sum is σ = 136384482. Its totient is φ = 136384480.

The previous prime is 136384403. The next prime is 136384499. The reversal of 136384481 is 184483631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126675025 + 9709456 = 11255^2 + 3116^2 .

It is a cyclic number.

It is not a de Polignac number, because 136384481 - 2¹⁴ = 136368097 is a prime.

It is a super-2 number, since 2×136384481² = 37201453315278722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (136324481) 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, 68192240 + 68192241.

It is an arithmetic number, because the mean of its divisors is an integer number (68192241).

Almost surely, 2^136384481 is an apocalyptic number.

It is an amenable number.

136384481 is a deficient number, since it is larger than the sum of its proper divisors (1).

136384481 is an equidigital number, since it uses as much as digits as its factorization.

136384481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 136384481 is about 11678.3766423249. The cubic root of 136384481 is about 514.7404743850.

The spelling of 136384481 in words is "one hundred thirty-six million, three hundred eighty-four thousand, four hundred eighty-one".