220702189 has 2 divisors, whose sum is σ = 220702190. Its totient is φ = 220702188.

The previous prime is 220702133. The next prime is 220702199. The reversal of 220702189 is 981207022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166797225 + 53904964 = 12915^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 220702189 - 2⁷ = 220702061 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220702189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220702199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110351094 + 110351095.

It is an arithmetic number, because the mean of its divisors is an integer number (110351095).

Almost surely, 2^220702189 is an apocalyptic number.

It is an amenable number.

220702189 is a deficient number, since it is larger than the sum of its proper divisors (1).

220702189 is an equidigital number, since it uses as much as digits as its factorization.

220702189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 220702189 is about 14856.0489027197. The cubic root of 220702189 is about 604.3226615775.

The spelling of 220702189 in words is "two hundred twenty million, seven hundred two thousand, one hundred eighty-nine".