109107161 has 2 divisors, whose sum is σ = 109107162. Its totient is φ = 109107160.

The previous prime is 109107127. The next prime is 109107203. The reversal of 109107161 is 161701901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98505625 + 10601536 = 9925^2 + 3256^2 .

It is an emirp because it is prime and its reverse (161701901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109107161 - 2¹⁸ = 108845017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 109107161.

It is not a weakly prime, because it can be changed into another prime (109107961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54553580 + 54553581.

It is an arithmetic number, because the mean of its divisors is an integer number (54553581).

Almost surely, 2^109107161 is an apocalyptic number.

It is an amenable number.

109107161 is a deficient number, since it is larger than the sum of its proper divisors (1).

109107161 is an equidigital number, since it uses as much as digits as its factorization.

109107161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 26.

The square root of 109107161 is about 10445.4373292840. The cubic root of 109107161 is about 477.8421089367.

The spelling of 109107161 in words is "one hundred nine million, one hundred seven thousand, one hundred sixty-one".