4240109 has 2 divisors, whose sum is σ = 4240110. Its totient is φ = 4240108.

The previous prime is 4240091. The next prime is 4240111. The reversal of 4240109 is 9010424.

Together with previous prime (4240091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3052009 + 1188100 = 1747^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240109 - 2⁸ = 4239853 is a prime.

Together with 4240111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4240139) 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, 2120054 + 2120055.

It is an arithmetic number, because the mean of its divisors is an integer number (2120055).

Almost surely, 2^4240109 is an apocalyptic number.

It is an amenable number.

4240109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240109 is an equidigital number, since it uses as much as digits as its factorization.

4240109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4240109 is about 2059.1524955670. The cubic root of 4240109 is about 161.8548336311.

The spelling of 4240109 in words is "four million, two hundred forty thousand, one hundred nine".