13455647 has 2 divisors, whose sum is σ = 13455648. Its totient is φ = 13455646.

The previous prime is 13455641. The next prime is 13455661. The reversal of 13455647 is 74655431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13455647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13455641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727823 + 6727824.

It is an arithmetic number, because the mean of its divisors is an integer number (6727824).

Almost surely, 2^13455647 is an apocalyptic number.

13455647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13455647 is an equidigital number, since it uses as much as digits as its factorization.

13455647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 35.

The square root of 13455647 is about 3668.1939697895. The cubic root of 13455647 is about 237.8491087433.

The spelling of 13455647 in words is "thirteen million, four hundred fifty-five thousand, six hundred forty-seven".