136211111 has 2 divisors, whose sum is σ = 136211112.
Its totient is φ = 136211110.
The previous prime is 136211099. The next prime is 136211147. The reversal of 136211111 is 111112631.
Adding to 136211111 its reverse (111112631), we get a palindrome (247323742).
136211111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a m-pointer prime, because the next prime (136211147) can be obtained adding 136211111 to its product of digits (36).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 136211111 - 214 = 136194727 is a prime.
136211111 is a modest number, since divided by 11111 gives 1362 as remainder.
It is a self number, because there is not a number n which added to its sum of digits gives 136211111.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (136211161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68105555 + 68105556.
It is an arithmetic number, because the mean of its divisors is an integer number (68105556).
Almost surely, 2136211111 is an apocalyptic number.
136211111 is a deficient number, since it is larger than the sum of its proper divisors (1).
136211111 is an equidigital number, since it uses as much as digits as its factorization.
136211111 is an evil number, because the sum of its binary digits is even.
The product of its digits is 36, while the sum is 17.
The square root of 136211111 is about 11670.9515893092.
The cubic root of 136211111 is about 514.5222716591.
The spelling of 136211111 in words is "one hundred thirty-six million, two hundred eleven thousand, one hundred eleven".