65065219 has 2 divisors, whose sum is σ = 65065220. Its totient is φ = 65065218.

The previous prime is 65065213. The next prime is 65065271. The reversal of 65065219 is 91256056.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65065219 is a prime.

It is a super-2 number, since 2×65065219² = 8466965447035922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65065213) 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, 32532609 + 32532610.

It is an arithmetic number, because the mean of its divisors is an integer number (32532610).

Almost surely, 2^65065219 is an apocalyptic number.

65065219 is a deficient number, since it is larger than the sum of its proper divisors (1).

65065219 is an equidigital number, since it uses as much as digits as its factorization.

65065219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 65065219 is about 8066.3014449003. The cubic root of 65065219 is about 402.2070066581.

The spelling of 65065219 in words is "sixty-five million, sixty-five thousand, two hundred nineteen".