136206201 has 4 divisors (see below), whose sum is σ = 181608272. Its totient is φ = 90804132.

The previous prime is 136206199. The next prime is 136206221. The reversal of 136206201 is 102602631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 136206201 - 2¹ = 136206199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136206221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22701031 + ... + 22701036.

It is an arithmetic number, because the mean of its divisors is an integer number (45402068).

Almost surely, 2^136206201 is an apocalyptic number.

It is an amenable number.

136206201 is a deficient number, since it is larger than the sum of its proper divisors (45402071).

136206201 is an equidigital number, since it uses as much as digits as its factorization.

136206201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45402070.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 136206201 is about 11670.7412360998. The cubic root of 136206201 is about 514.5160892592.

Adding to 136206201 its reverse (102602631), we get a palindrome (238808832).

The spelling of 136206201 in words is "one hundred thirty-six million, two hundred six thousand, two hundred one".