218229065 has 8 divisors (see below), whose sum is σ = 262398528. Its totient is φ = 174234160.

The previous prime is 218229049. The next prime is 218229107. The reversal of 218229065 is 560922812.

It is a happy number.

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

It is not a de Polignac number, because 218229065 - 2⁴ = 218229049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40871 + ... + 45900.

It is an arithmetic number, because the mean of its divisors is an integer number (32799816).

Almost surely, 2^218229065 is an apocalyptic number.

It is an amenable number.

218229065 is a deficient number, since it is larger than the sum of its proper divisors (44169463).

218229065 is an equidigital number, since it uses as much as digits as its factorization.

218229065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87279.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 218229065 is about 14772.5781433032. The cubic root of 218229065 is about 602.0568896911.

The spelling of 218229065 in words is "two hundred eighteen million, two hundred twenty-nine thousand, sixty-five".