218964901 has 8 divisors (see below), whose sum is σ = 224256384. Its totient is φ = 213682560.

The previous prime is 218964839. The next prime is 218964937. The reversal of 218964901 is 109469812.

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 218964901 - 2⁷ = 218964773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218964971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88260 + ... + 90706.

It is an arithmetic number, because the mean of its divisors is an integer number (28032048).

Almost surely, 2^218964901 is an apocalyptic number.

It is an amenable number.

218964901 is a deficient number, since it is larger than the sum of its proper divisors (5291483).

218964901 is a wasteful number, since it uses less digits than its factorization.

218964901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 218964901 is about 14797.4626541174. The cubic root of 218964901 is about 602.7328126974.

The spelling of 218964901 in words is "two hundred eighteen million, nine hundred sixty-four thousand, nine hundred one".