214504109 has 2 divisors, whose sum is σ = 214504110. Its totient is φ = 214504108.

The previous prime is 214504093. The next prime is 214504127. The reversal of 214504109 is 901405412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198528100 + 15976009 = 14090^2 + 3997^2 .

It is a cyclic number.

It is not a de Polignac number, because 214504109 - 2⁴ = 214504093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214504009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107252054 + 107252055.

It is an arithmetic number, because the mean of its divisors is an integer number (107252055).

Almost surely, 2^214504109 is an apocalyptic number.

It is an amenable number.

214504109 is a deficient number, since it is larger than the sum of its proper divisors (1).

214504109 is an equidigital number, since it uses as much as digits as its factorization.

214504109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 214504109 is about 14645.9587941521. The cubic root of 214504109 is about 598.6117059510.

The spelling of 214504109 in words is "two hundred fourteen million, five hundred four thousand, one hundred nine".