2409109 has 2 divisors, whose sum is σ = 2409110. Its totient is φ = 2409108.

The previous prime is 2409091. The next prime is 2409131. The reversal of 2409109 is 9019042.

Together with previous prime (2409091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2241009 + 168100 = 1497^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2409109 - 2⁷ = 2408981 is a prime.

2409109 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2409149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204554 + 1204555.

It is an arithmetic number, because the mean of its divisors is an integer number (1204555).

2^2409109 is an apocalyptic number.

It is an amenable number.

2409109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409109 is an equidigital number, since it uses as much as digits as its factorization.

2409109 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2409109 is about 1552.1304713200. The cubic root of 2409109 is about 134.0557613032.

The spelling of 2409109 in words is "two million, four hundred nine thousand, one hundred nine".