136745369 has 2 divisors, whose sum is σ = 136745370. Its totient is φ = 136745368.

The previous prime is 136745359. The next prime is 136745387. The reversal of 136745369 is 963547631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95785369 + 40960000 = 9787^2 + 6400^2 .

It is an emirp because it is prime and its reverse (963547631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136745369 - 2²⁴ = 119968153 is a prime.

It is a super-2 number, since 2×136745369² = 37398591885892322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (136745339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68372684 + 68372685.

It is an arithmetic number, because the mean of its divisors is an integer number (68372685).

Almost surely, 2^136745369 is an apocalyptic number.

It is an amenable number.

136745369 is a deficient number, since it is larger than the sum of its proper divisors (1).

136745369 is an equidigital number, since it uses as much as digits as its factorization.

136745369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 136745369 is about 11693.8175545884. The cubic root of 136745369 is about 515.1940940568.

The spelling of 136745369 in words is "one hundred thirty-six million, seven hundred forty-five thousand, three hundred sixty-nine".