218496241 has 2 divisors, whose sum is σ = 218496242. Its totient is φ = 218496240.

The previous prime is 218496233. The next prime is 218496259. The reversal of 218496241 is 142694812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171505216 + 46991025 = 13096^2 + 6855^2 .

It is a cyclic number.

It is not a de Polignac number, because 218496241 - 2³ = 218496233 is a prime.

It is a super-2 number, since 2×218496241² = 95481214662260162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 218496241.

It is not a weakly prime, because it can be changed into another prime (218496221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109248120 + 109248121.

It is an arithmetic number, because the mean of its divisors is an integer number (109248121).

Almost surely, 2^218496241 is an apocalyptic number.

It is an amenable number.

218496241 is a deficient number, since it is larger than the sum of its proper divisors (1).

218496241 is an equidigital number, since it uses as much as digits as its factorization.

218496241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 218496241 is about 14781.6183484759. The cubic root of 218496241 is about 602.3024872113.

The spelling of 218496241 in words is "two hundred eighteen million, four hundred ninety-six thousand, two hundred forty-one".