2114205809 has 2 divisors, whose sum is σ = 2114205810. Its totient is φ = 2114205808.

The previous prime is 2114205781. The next prime is 2114205817. The reversal of 2114205809 is 9085024112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1656245809 + 457960000 = 40697^2 + 21400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2114205809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2114205869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057102904 + 1057102905.

It is an arithmetic number, because the mean of its divisors is an integer number (1057102905).

Almost surely, 2^2114205809 is an apocalyptic number.

It is an amenable number.

2114205809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2114205809 is an equidigital number, since it uses as much as digits as its factorization.

2114205809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 2114205809 is about 45980.4937881272. The cubic root of 2114205809 is about 1283.4602437638.

The spelling of 2114205809 in words is "two billion, one hundred fourteen million, two hundred five thousand, eight hundred nine".