65009219 has 8 divisors (see below), whose sum is σ = 70981680. Its totient is φ = 59047200.

The previous prime is 65009177. The next prime is 65009257. The reversal of 65009219 is 91290056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65009219 - 2¹² = 65005123 is a prime.

It is a super-2 number, since 2×65009219² = 8452397109979922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65009419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16589 + ... + 20129.

It is an arithmetic number, because the mean of its divisors is an integer number (8872710).

Almost surely, 2^65009219 is an apocalyptic number.

65009219 is a deficient number, since it is larger than the sum of its proper divisors (5972461).

65009219 is a wasteful number, since it uses less digits than its factorization.

65009219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 65009219 is about 8062.8294661366. The cubic root of 65009219 is about 402.0915837145.

The spelling of 65009219 in words is "sixty-five million, nine thousand, two hundred nineteen".