136306211 has 8 divisors (see below), whose sum is σ = 142911744. Its totient is φ = 129757320.

The previous prime is 136306193. The next prime is 136306217. The reversal of 136306211 is 112603631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136306211 - 2¹⁴ = 136289827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136306217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9191 + ... + 18896.

It is an arithmetic number, because the mean of its divisors is an integer number (17863968).

Almost surely, 2^136306211 is an apocalyptic number.

136306211 is a deficient number, since it is larger than the sum of its proper divisors (6605533).

136306211 is a wasteful number, since it uses less digits than its factorization.

136306211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28321.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 136306211 is about 11675.0250963328. The cubic root of 136306211 is about 514.6419870150.

Adding to 136306211 its reverse (112603631), we get a palindrome (248909842).

The spelling of 136306211 in words is "one hundred thirty-six million, three hundred six thousand, two hundred eleven".