134216647 has 2 divisors, whose sum is σ = 134216648. Its totient is φ = 134216646.

The previous prime is 134216629. The next prime is 134216729. The reversal of 134216647 is 746612431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134216647 - 2¹⁵ = 134183879 is a prime.

It is equal to p_7603495 and since 134216647 and 7603495 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134216347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67108323 + 67108324.

It is an arithmetic number, because the mean of its divisors is an integer number (67108324).

Almost surely, 2^134216647 is an apocalyptic number.

134216647 is a deficient number, since it is larger than the sum of its proper divisors (1).

134216647 is an equidigital number, since it uses as much as digits as its factorization.

134216647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 134216647 is about 11585.1908486654. The cubic root of 134216647 is about 511.9986254337.

The spelling of 134216647 in words is "one hundred thirty-four million, two hundred sixteen thousand, six hundred forty-seven".