109181873 has 2 divisors, whose sum is σ = 109181874. Its totient is φ = 109181872.

The previous prime is 109181861. The next prime is 109181881. The reversal of 109181873 is 378181901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103388224 + 5793649 = 10168^2 + 2407^2 .

It is a cyclic number.

It is not a de Polignac number, because 109181873 - 2¹⁰ = 109180849 is a prime.

It is not a weakly prime, because it can be changed into another prime (109181273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54590936 + 54590937.

It is an arithmetic number, because the mean of its divisors is an integer number (54590937).

Almost surely, 2^109181873 is an apocalyptic number.

It is an amenable number.

109181873 is a deficient number, since it is larger than the sum of its proper divisors (1).

109181873 is an equidigital number, since it uses as much as digits as its factorization.

109181873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 109181873 is about 10449.0130155915. The cubic root of 109181873 is about 477.9511527846.

The spelling of 109181873 in words is "one hundred nine million, one hundred eighty-one thousand, eight hundred seventy-three".