2170455109 has 2 divisors, whose sum is σ = 2170455110. Its totient is φ = 2170455108.

The previous prime is 2170455097. The next prime is 2170455163. The reversal of 2170455109 is 9015540712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1934064484 + 236390625 = 43978^2 + 15375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170455109 - 2¹⁹ = 2169930821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170455169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085227554 + 1085227555.

It is an arithmetic number, because the mean of its divisors is an integer number (1085227555).

Almost surely, 2^2170455109 is an apocalyptic number.

It is an amenable number.

2170455109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170455109 is an equidigital number, since it uses as much as digits as its factorization.

2170455109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2170455109 is about 46588.1434380036. The cubic root of 2170455109 is about 1294.7430922021.

The spelling of 2170455109 in words is "two billion, one hundred seventy million, four hundred fifty-five thousand, one hundred nine".