136205099 has 4 divisors (see below), whose sum is σ = 138513720. Its totient is φ = 133896480.

The previous prime is 136205089. The next prime is 136205101. The reversal of 136205099 is 990502631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990502631 = 229 ⋅4325339.

It is a cyclic number.

It is not a de Polignac number, because 136205099 - 2⁸ = 136204843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136205039) 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 in 3 ways as a sum of consecutive naturals, for example, 1154222 + ... + 1154339.

It is an arithmetic number, because the mean of its divisors is an integer number (34628430).

Almost surely, 2^136205099 is an apocalyptic number.

136205099 is a deficient number, since it is larger than the sum of its proper divisors (2308621).

136205099 is an equidigital number, since it uses as much as digits as its factorization.

136205099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308620.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 136205099 is about 11670.6940239216. The cubic root of 136205099 is about 514.5147016614.

The spelling of 136205099 in words is "one hundred thirty-six million, two hundred five thousand, ninety-nine".