7161109 has 2 divisors, whose sum is σ = 7161110. Its totient is φ = 7161108.

The previous prime is 7161107. The next prime is 7161137. The reversal of 7161109 is 9011617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6874884 + 286225 = 2622^2 + 535^2 .

It is an emirp because it is prime and its reverse (9011617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7161109 - 2¹ = 7161107 is a prime.

Together with 7161107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7161103) 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, 3580554 + 3580555.

It is an arithmetic number, because the mean of its divisors is an integer number (3580555).

Almost surely, 2^7161109 is an apocalyptic number.

It is an amenable number.

7161109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7161109 is an equidigital number, since it uses as much as digits as its factorization.

7161109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 7161109 is about 2676.0248504078. The cubic root of 7161109 is about 192.7495745293.

The spelling of 7161109 in words is "seven million, one hundred sixty-one thousand, one hundred nine".