220410181 has 2 divisors, whose sum is σ = 220410182. Its totient is φ = 220410180.

The previous prime is 220410163. The next prime is 220410209. The reversal of 220410181 is 181014022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191573281 + 28836900 = 13841^2 + 5370^2 .

It is a cyclic number.

It is not a de Polignac number, because 220410181 - 2¹³ = 220401989 is a prime.

It is a super-2 number, since 2×220410181² = 97161295776905522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220410161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110205090 + 110205091.

It is an arithmetic number, because the mean of its divisors is an integer number (110205091).

Almost surely, 2^220410181 is an apocalyptic number.

It is an amenable number.

220410181 is a deficient number, since it is larger than the sum of its proper divisors (1).

220410181 is an equidigital number, since it uses as much as digits as its factorization.

220410181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 220410181 is about 14846.2177338203. The cubic root of 220410181 is about 604.0560203073.

The spelling of 220410181 in words is "two hundred twenty million, four hundred ten thousand, one hundred eighty-one".