2127109 has 6 divisors (see below), whose sum is σ = 2224166. Its totient is φ = 2034120.

The previous prime is 2127077. The next prime is 2127133. The reversal of 2127109 is 9017212.

2127109 = T₁₀₂ + T₁₀₃ + ... + T₂₃₉.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 804609 = 1150^2 + 897^2 .

It is not a de Polignac number, because 2127109 - 2⁵ = 2127077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2127109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1482 + ... + 2539.

2^2127109 is an apocalyptic number.

It is an amenable number.

2127109 is a deficient number, since it is larger than the sum of its proper divisors (97057).

2127109 is an equidigital number, since it uses as much as digits as its factorization.

2127109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2127109 is about 1458.4611753489. The cubic root of 2127109 is about 128.6065974926.

The spelling of 2127109 in words is "two million, one hundred twenty-seven thousand, one hundred nine".