606201109 has 2 divisors, whose sum is σ = 606201110. Its totient is φ = 606201108.

The previous prime is 606201107. The next prime is 606201119. The reversal of 606201109 is 901102606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450500625 + 155700484 = 21225^2 + 12478^2 .

It is a cyclic number.

It is not a de Polignac number, because 606201109 - 2¹ = 606201107 is a prime.

Together with 606201107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606201107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303100554 + 303100555.

It is an arithmetic number, because the mean of its divisors is an integer number (303100555).

Almost surely, 2^606201109 is an apocalyptic number.

It is an amenable number.

606201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

606201109 is an equidigital number, since it uses as much as digits as its factorization.

606201109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 606201109 is about 24621.1516586857. The cubic root of 606201109 is about 846.3283887598.

The spelling of 606201109 in words is "six hundred six million, two hundred one thousand, one hundred nine".