7243109 has 2 divisors, whose sum is σ = 7243110. Its totient is φ = 7243108.

The previous prime is 7243021. The next prime is 7243111. The reversal of 7243109 is 9013427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3912484 + 3330625 = 1978^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 7243109 - 2⁸ = 7242853 is a prime.

Together with 7243111, 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 (7243129) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621554 + 3621555.

It is an arithmetic number, because the mean of its divisors is an integer number (3621555).

Almost surely, 2^7243109 is an apocalyptic number.

It is an amenable number.

7243109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243109 is an equidigital number, since it uses as much as digits as its factorization.

7243109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 7243109 is about 2691.3024727815. The cubic root of 7243109 is about 193.4824925681.

The spelling of 7243109 in words is "seven million, two hundred forty-three thousand, one hundred nine".