214107209 has 2 divisors, whose sum is σ = 214107210. Its totient is φ = 214107208.

The previous prime is 214107199. The next prime is 214107251. The reversal of 214107209 is 902701412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173185600 + 40921609 = 13160^2 + 6397^2 .

It is a cyclic number.

It is not a de Polignac number, because 214107209 - 2²⁰ = 213058633 is a prime.

It is not a weakly prime, because it can be changed into another prime (214107259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107053604 + 107053605.

It is an arithmetic number, because the mean of its divisors is an integer number (107053605).

Almost surely, 2^214107209 is an apocalyptic number.

It is an amenable number.

214107209 is a deficient number, since it is larger than the sum of its proper divisors (1).

214107209 is an equidigital number, since it uses as much as digits as its factorization.

214107209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 214107209 is about 14632.4027076895. The cubic root of 214107209 is about 598.2422714196.

The spelling of 214107209 in words is "two hundred fourteen million, one hundred seven thousand, two hundred nine".