2109049 has 2 divisors, whose sum is σ = 2109050. Its totient is φ = 2109048.

The previous prime is 2109013. The next prime is 2109053. The reversal of 2109049 is 9409012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 883600 = 1107^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2109049 - 2²¹ = 11897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2109059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054524 + 1054525.

It is an arithmetic number, because the mean of its divisors is an integer number (1054525).

2^2109049 is an apocalyptic number.

It is an amenable number.

2109049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109049 is an equidigital number, since it uses as much as digits as its factorization.

2109049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2109049 is about 1452.2565200405. The cubic root of 2109049 is about 128.2415888200.

The spelling of 2109049 in words is "two million, one hundred nine thousand, forty-nine".