2182103309 has 2 divisors, whose sum is σ = 2182103310. Its totient is φ = 2182103308.

The previous prime is 2182103293. The next prime is 2182103359. The reversal of 2182103309 is 9033012812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2136473284 + 45630025 = 46222^2 + 6755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2182103309 - 2⁴ = 2182103293 is a prime.

It is a super-2 number, since 2×2182103309² = 9523149702297498962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2182103359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1091051654 + 1091051655.

It is an arithmetic number, because the mean of its divisors is an integer number (1091051655).

Almost surely, 2^2182103309 is an apocalyptic number.

It is an amenable number.

2182103309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2182103309 is an equidigital number, since it uses as much as digits as its factorization.

2182103309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2182103309 is about 46712.9886541206. The cubic root of 2182103309 is about 1297.0551307187.

The spelling of 2182103309 in words is "two billion, one hundred eighty-two million, one hundred three thousand, three hundred nine".