136618199 has 2 divisors, whose sum is σ = 136618200. Its totient is φ = 136618198.

The previous prime is 136618193. The next prime is 136618201. The reversal of 136618199 is 991816631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136618199 - 2¹² = 136614103 is a prime.

Together with 136618201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136618193) 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, 68309099 + 68309100.

It is an arithmetic number, because the mean of its divisors is an integer number (68309100).

Almost surely, 2^136618199 is an apocalyptic number.

136618199 is a deficient number, since it is larger than the sum of its proper divisors (1).

136618199 is an equidigital number, since it uses as much as digits as its factorization.

136618199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 136618199 is about 11688.3788011854. The cubic root of 136618199 is about 515.0343383646.

The spelling of 136618199 in words is "one hundred thirty-six million, six hundred eighteen thousand, one hundred ninety-nine".