65009212 has 12 divisors (see below), whose sum is σ = 114345000. Its totient is φ = 32339216.

The previous prime is 65009177. The next prime is 65009257. The reversal of 65009212 is 21290056.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 40462 + ... + 42037.

It is an arithmetic number, because the mean of its divisors is an integer number (9528750).

Almost surely, 2^65009212 is an apocalyptic number.

It is an amenable number.

65009212 is a deficient number, since it is larger than the sum of its proper divisors (49335788).

65009212 is a wasteful number, since it uses less digits than its factorization.

65009212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82700 (or 82698 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 65009212 is about 8062.8290320458. The cubic root of 65009212 is about 402.0915692825.

Adding to 65009212 its reverse (21290056), we get a palindrome (86299268).

The spelling of 65009212 in words is "sixty-five million, nine thousand, two hundred twelve".