7201109 has 2 divisors, whose sum is σ = 7201110. Its totient is φ = 7201108.

The previous prime is 7201099. The next prime is 7201123. The reversal of 7201109 is 9011027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 555025 = 2578^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 7201109 - 2¹⁶ = 7135573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7201189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3600554 + 3600555.

It is an arithmetic number, because the mean of its divisors is an integer number (3600555).

Almost surely, 2^7201109 is an apocalyptic number.

It is an amenable number.

7201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7201109 is an equidigital number, since it uses as much as digits as its factorization.

7201109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 7201109 is about 2683.4882149918. The cubic root of 7201109 is about 193.1077905578.

The spelling of 7201109 in words is "seven million, two hundred one thousand, one hundred nine".