136486109 has 2 divisors, whose sum is σ = 136486110. Its totient is φ = 136486108.

The previous prime is 136486099. The next prime is 136486159. The reversal of 136486109 is 901684631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107702884 + 28783225 = 10378^2 + 5365^2 .

It is a cyclic number.

It is not a de Polignac number, because 136486109 - 2²⁴ = 119708893 is a prime.

It is a Chen prime.

It is equal to p_7724765 and since 136486109 and 7724765 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136486159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68243054 + 68243055.

It is an arithmetic number, because the mean of its divisors is an integer number (68243055).

Almost surely, 2^136486109 is an apocalyptic number.

It is an amenable number.

136486109 is a deficient number, since it is larger than the sum of its proper divisors (1).

136486109 is an equidigital number, since it uses as much as digits as its factorization.

136486109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 136486109 is about 11682.7269505026. The cubic root of 136486109 is about 514.8682969846.

The spelling of 136486109 in words is "one hundred thirty-six million, four hundred eighty-six thousand, one hundred nine".