218104001 has 4 divisors (see below), whose sum is σ = 218141232. Its totient is φ = 218066772.

The previous prime is 218103979. The next prime is 218104013. The reversal of 218104001 is 100401812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 218104001 - 2¹⁰ = 218102977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218124001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7691 + ... + 22256.

It is an arithmetic number, because the mean of its divisors is an integer number (54535308).

Almost surely, 2^218104001 is an apocalyptic number.

It is an amenable number.

218104001 is a deficient number, since it is larger than the sum of its proper divisors (37231).

218104001 is an equidigital number, since it uses as much as digits as its factorization.

218104001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37230.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 218104001 is about 14768.3445585482. The cubic root of 218104001 is about 601.9418576091.

Adding to 218104001 its reverse (100401812), we get a palindrome (318505813).

The spelling of 218104001 in words is "two hundred eighteen million, one hundred four thousand, one".