2109277 has 2 divisors, whose sum is σ = 2109278. Its totient is φ = 2109276.

The previous prime is 2109269. The next prime is 2109287. The reversal of 2109277 is 7729012.

It is a happy number.

2109277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1413721 + 695556 = 1189^2 + 834^2 .

It is a cyclic number.

It is not a de Polignac number, because 2109277 - 2³ = 2109269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054638 + 1054639.

It is an arithmetic number, because the mean of its divisors is an integer number (1054639).

2^2109277 is an apocalyptic number.

It is an amenable number.

2109277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109277 is an equidigital number, since it uses as much as digits as its factorization.

2109277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 2109277 is about 1452.3350164477. The cubic root of 2109277 is about 128.2462098646.

The spelling of 2109277 in words is "two million, one hundred nine thousand, two hundred seventy-seven".