136234369 has 2 divisors, whose sum is σ = 136234370. Its totient is φ = 136234368.

The previous prime is 136234361. The next prime is 136234381. The reversal of 136234369 is 963432631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135489600 + 744769 = 11640^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 136234369 - 2³ = 136234361 is a prime.

It is a super-2 number, since 2×136234369² = 37119606593656322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136234361) 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, 68117184 + 68117185.

It is an arithmetic number, because the mean of its divisors is an integer number (68117185).

Almost surely, 2^136234369 is an apocalyptic number.

It is an amenable number.

136234369 is a deficient number, since it is larger than the sum of its proper divisors (1).

136234369 is an equidigital number, since it uses as much as digits as its factorization.

136234369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 37.

The square root of 136234369 is about 11671.9479522486. The cubic root of 136234369 is about 514.5515548257.

The spelling of 136234369 in words is "one hundred thirty-six million, two hundred thirty-four thousand, three hundred sixty-nine".