2712198109 has 2 divisors, whose sum is σ = 2712198110. Its totient is φ = 2712198108.

The previous prime is 2712198107. The next prime is 2712198119. The reversal of 2712198109 is 9018912172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2155002084 + 557196025 = 46422^2 + 23605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2712198109 - 2¹ = 2712198107 is a prime.

Together with 2712198107, 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 (2712198101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1356099054 + 1356099055.

It is an arithmetic number, because the mean of its divisors is an integer number (1356099055).

Almost surely, 2^2712198109 is an apocalyptic number.

It is an amenable number.

2712198109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2712198109 is an equidigital number, since it uses as much as digits as its factorization.

2712198109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 2712198109 is about 52078.7683130083. The cubic root of 2712198109 is about 1394.5704854801.

The spelling of 2712198109 in words is "two billion, seven hundred twelve million, one hundred ninety-eight thousand, one hundred nine".