65112213 has 8 divisors (see below), whose sum is σ = 86888128. Its totient is φ = 43372224.

The previous prime is 65112199. The next prime is 65112251. The reversal of 65112213 is 31221156.

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

It is not a de Polignac number, because 65112213 - 2⁴ = 65112197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65112213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65112263) 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, 4420 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (10861016).

Almost surely, 2^65112213 is an apocalyptic number.

It is an amenable number.

65112213 is a deficient number, since it is larger than the sum of its proper divisors (21775915).

65112213 is a wasteful number, since it uses less digits than its factorization.

65112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963.

The product of its digits is 360, while the sum is 21.

The square root of 65112213 is about 8069.2139022336. The cubic root of 65112213 is about 402.3038160217.

Adding to 65112213 its reverse (31221156), we get a palindrome (96333369).

The spelling of 65112213 in words is "sixty-five million, one hundred twelve thousand, two hundred thirteen".