136109111 has 2 divisors, whose sum is σ = 136109112. Its totient is φ = 136109110.

The previous prime is 136109087. The next prime is 136109119. The reversal of 136109111 is 111901631.

136109111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (111901631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136109111 - 2¹⁴ = 136092727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136109119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68054555 + 68054556.

It is an arithmetic number, because the mean of its divisors is an integer number (68054556).

Almost surely, 2^136109111 is an apocalyptic number.

136109111 is a deficient number, since it is larger than the sum of its proper divisors (1).

136109111 is an equidigital number, since it uses as much as digits as its factorization.

136109111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 136109111 is about 11666.5809473041. The cubic root of 136109111 is about 514.3938083819.

The spelling of 136109111 in words is "one hundred thirty-six million, one hundred nine thousand, one hundred eleven".