65005147 has 2 divisors, whose sum is σ = 65005148. Its totient is φ = 65005146.

The previous prime is 65005139. The next prime is 65005151. The reversal of 65005147 is 74150056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65005147 - 2³ = 65005139 is a prime.

It is not a weakly prime, because it can be changed into another prime (65005547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32502573 + 32502574.

It is an arithmetic number, because the mean of its divisors is an integer number (32502574).

Almost surely, 2^65005147 is an apocalyptic number.

65005147 is a deficient number, since it is larger than the sum of its proper divisors (1).

65005147 is an equidigital number, since it uses as much as digits as its factorization.

65005147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 65005147 is about 8062.5769453693. The cubic root of 65005147 is about 402.0831882329.

The spelling of 65005147 in words is "sixty-five million, five thousand, one hundred forty-seven".