134444647 has 2 divisors, whose sum is σ = 134444648. Its totient is φ = 134444646.

The previous prime is 134444641. The next prime is 134444663. The reversal of 134444647 is 746444431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134444647 - 2²³ = 126056039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134444641) 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, 67222323 + 67222324.

It is an arithmetic number, because the mean of its divisors is an integer number (67222324).

Almost surely, 2^134444647 is an apocalyptic number.

134444647 is a deficient number, since it is larger than the sum of its proper divisors (1).

134444647 is an equidigital number, since it uses as much as digits as its factorization.

134444647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 37.

The square root of 134444647 is about 11595.0268218750. The cubic root of 134444647 is about 512.2883799714.

The spelling of 134444647 in words is "one hundred thirty-four million, four hundred forty-four thousand, six hundred forty-seven".