2002010209 has 2 divisors, whose sum is σ = 2002010210. Its totient is φ = 2002010208.

The previous prime is 2002010161. The next prime is 2002010249. The reversal of 2002010209 is 9020102002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1303571025 + 698439184 = 36105^2 + 26428^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002010209 - 2¹¹ = 2002008161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002010192 and 2002010201.

It is not a weakly prime, because it can be changed into another prime (2002010249) 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, 1001005104 + 1001005105.

It is an arithmetic number, because the mean of its divisors is an integer number (1001005105).

Almost surely, 2^2002010209 is an apocalyptic number.

It is an amenable number.

2002010209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002010209 is an equidigital number, since it uses as much as digits as its factorization.

2002010209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2002010209 is about 44743.8287253114. The cubic root of 2002010209 is about 1260.3430259887.

The spelling of 2002010209 in words is "two billion, two million, ten thousand, two hundred nine".