136246609 has 2 divisors, whose sum is σ = 136246610. Its totient is φ = 136246608.

The previous prime is 136246601. The next prime is 136246651. The reversal of 136246609 is 906642631.

It is a happy number.

136246609 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., 136235584 + 11025 = 11672^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 136246609 - 2³ = 136246601 is a prime.

It is not a weakly prime, because it can be changed into another prime (136246601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68123304 + 68123305.

It is an arithmetic number, because the mean of its divisors is an integer number (68123305).

Almost surely, 2^136246609 is an apocalyptic number.

It is an amenable number.

136246609 is a deficient number, since it is larger than the sum of its proper divisors (1).

136246609 is an equidigital number, since it uses as much as digits as its factorization.

136246609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 136246609 is about 11672.4722745441. The cubic root of 136246609 is about 514.5669643548.

The spelling of 136246609 in words is "one hundred thirty-six million, two hundred forty-six thousand, six hundred nine".