136044169 has 2 divisors, whose sum is σ = 136044170. Its totient is φ = 136044168.

The previous prime is 136044157. The next prime is 136044193. The reversal of 136044169 is 961440631.

136044169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99900025 + 36144144 = 9995^2 + 6012^2 .

It is an emirp because it is prime and its reverse (961440631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136044169 - 2⁵ = 136044137 is a prime.

It is a super-2 number, since 2×136044169² = 37016031837801122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136044569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68022084 + 68022085.

It is an arithmetic number, because the mean of its divisors is an integer number (68022085).

Almost surely, 2^136044169 is an apocalyptic number.

It is an amenable number.

136044169 is a deficient number, since it is larger than the sum of its proper divisors (1).

136044169 is an equidigital number, since it uses as much as digits as its factorization.

136044169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 136044169 is about 11663.7973662097. The cubic root of 136044169 is about 514.3119841336.

The spelling of 136044169 in words is "one hundred thirty-six million, forty-four thousand, one hundred sixty-nine".