218560941 has 6 divisors (see below), whose sum is σ = 315699150. Its totient is φ = 145707288.

The previous prime is 218560931. The next prime is 218560963. The reversal of 218560941 is 149065812.

218560941 is a `hidden beast` number, since 2 + 1 + 8 + 5 + 609 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156875625 + 61685316 = 12525^2 + 7854^2 .

It is not a de Polignac number, because 218560941 - 2⁶ = 218560877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218560896 and 218560905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218560921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12142266 + ... + 12142283.

It is an arithmetic number, because the mean of its divisors is an integer number (52616525).

Almost surely, 2^218560941 is an apocalyptic number.

It is an amenable number.

218560941 is a deficient number, since it is larger than the sum of its proper divisors (97138209).

218560941 is a wasteful number, since it uses less digits than its factorization.

218560941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24284555 (or 24284552 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 218560941 is about 14783.8067154573. The cubic root of 218560941 is about 602.3619315980.

The spelling of 218560941 in words is "two hundred eighteen million, five hundred sixty thousand, nine hundred forty-one".