136408499 has 2 divisors, whose sum is σ = 136408500. Its totient is φ = 136408498.

The previous prime is 136408487. The next prime is 136408507. The reversal of 136408499 is 994804631.

It is a strong prime.

It is an emirp because it is prime and its reverse (994804631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136408499 - 2¹² = 136404403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136408409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68204249 + 68204250.

It is an arithmetic number, because the mean of its divisors is an integer number (68204250).

Almost surely, 2^136408499 is an apocalyptic number.

136408499 is a deficient number, since it is larger than the sum of its proper divisors (1).

136408499 is an equidigital number, since it uses as much as digits as its factorization.

136408499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 136408499 is about 11679.4049077853. The cubic root of 136408499 is about 514.7706887489.

The spelling of 136408499 in words is "one hundred thirty-six million, four hundred eight thousand, four hundred ninety-nine".