2109097 has 2 divisors, whose sum is σ = 2109098. Its totient is φ = 2109096.

The previous prime is 2109067. The next prime is 2109101. The reversal of 2109097 is 7909012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 179776 = 1389^2 + 424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2109097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2109067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054548 + 1054549.

It is an arithmetic number, because the mean of its divisors is an integer number (1054549).

2^2109097 is an apocalyptic number.

It is an amenable number.

2109097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109097 is an equidigital number, since it uses as much as digits as its factorization.

2109097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2109097 is about 1452.2730459524. The cubic root of 2109097 is about 128.2425616991.

The spelling of 2109097 in words is "two million, one hundred nine thousand, ninety-seven".