214684189 has 2 divisors, whose sum is σ = 214684190. Its totient is φ = 214684188.

The previous prime is 214684181. The next prime is 214684199. The reversal of 214684189 is 981486412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157076089 + 57608100 = 12533^2 + 7590^2 .

It is a cyclic number.

It is not a de Polignac number, because 214684189 - 2³ = 214684181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214684181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107342094 + 107342095.

It is an arithmetic number, because the mean of its divisors is an integer number (107342095).

Almost surely, 2^214684189 is an apocalyptic number.

It is an amenable number.

214684189 is a deficient number, since it is larger than the sum of its proper divisors (1).

214684189 is an equidigital number, since it uses as much as digits as its factorization.

214684189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 43.

The square root of 214684189 is about 14652.1052753521. The cubic root of 214684189 is about 598.7791741399.

The spelling of 214684189 in words is "two hundred fourteen million, six hundred eighty-four thousand, one hundred eighty-nine".