134509447 has 2 divisors, whose sum is σ = 134509448. Its totient is φ = 134509446.

The previous prime is 134509399. The next prime is 134509469. The reversal of 134509447 is 744905431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134509447 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 (134509147) 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 as a sum of consecutive naturals, namely, 67254723 + 67254724.

It is an arithmetic number, because the mean of its divisors is an integer number (67254724).

Almost surely, 2^134509447 is an apocalyptic number.

134509447 is a deficient number, since it is larger than the sum of its proper divisors (1).

134509447 is an equidigital number, since it uses as much as digits as its factorization.

134509447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 134509447 is about 11597.8207866823. The cubic root of 134509447 is about 512.3706714716.

The spelling of 134509447 in words is "one hundred thirty-four million, five hundred nine thousand, four hundred forty-seven".