136462609 has 2 divisors, whose sum is σ = 136462610. Its totient is φ = 136462608.

The previous prime is 136462591. The next prime is 136462633. The reversal of 136462609 is 906264631.

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., 135652609 + 810000 = 11647^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 136462609 - 2⁷ = 136462481 is a prime.

It is not a weakly prime, because it can be changed into another prime (136463609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68231304 + 68231305.

It is an arithmetic number, because the mean of its divisors is an integer number (68231305).

Almost surely, 2^136462609 is an apocalyptic number.

It is an amenable number.

136462609 is a deficient number, since it is larger than the sum of its proper divisors (1).

136462609 is an equidigital number, since it uses as much as digits as its factorization.

136462609 is an odious number, because the sum of its binary digits is odd.

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

The square root of 136462609 is about 11681.7211488719. The cubic root of 136462609 is about 514.8387455048.

The spelling of 136462609 in words is "one hundred thirty-six million, four hundred sixty-two thousand, six hundred nine".