20114209 has 2 divisors, whose sum is σ = 20114210. Its totient is φ = 20114208.

The previous prime is 20114207. The next prime is 20114249. The reversal of 20114209 is 90241102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13483584 + 6630625 = 3672^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 20114209 - 2¹ = 20114207 is a prime.

It is a super-4 number, since 4×20114209⁴ (a number of 30 digits) contains 4444 as substring.

Together with 20114207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20114207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057104 + 10057105.

It is an arithmetic number, because the mean of its divisors is an integer number (10057105).

Almost surely, 2^20114209 is an apocalyptic number.

It is an amenable number.

20114209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20114209 is an equidigital number, since it uses as much as digits as its factorization.

20114209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 20114209 is about 4484.8867321260. The cubic root of 20114209 is about 271.9574661360.

The spelling of 20114209 in words is "twenty million, one hundred fourteen thousand, two hundred nine".