136677647 has 4 divisors (see below), whose sum is σ = 137249760. Its totient is φ = 136105536.

The previous prime is 136677631. The next prime is 136677649. The reversal of 136677647 is 746776631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136677647 - 2⁴ = 136677631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136677649) 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 in 3 ways as a sum of consecutive naturals, for example, 285698 + ... + 286175.

It is an arithmetic number, because the mean of its divisors is an integer number (34312440).

Almost surely, 2^136677647 is an apocalyptic number.

136677647 is a deficient number, since it is larger than the sum of its proper divisors (572113).

136677647 is an equidigital number, since it uses as much as digits as its factorization.

136677647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572112.

The product of its digits is 889056, while the sum is 47.

The square root of 136677647 is about 11690.9215633328. The cubic root of 136677647 is about 515.1090314914.

The spelling of 136677647 in words is "one hundred thirty-six million, six hundred seventy-seven thousand, six hundred forty-seven".