109381117 has 2 divisors, whose sum is σ = 109381118. Its totient is φ = 109381116.

The previous prime is 109381099. The next prime is 109381133. The reversal of 109381117 is 711183901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63059481 + 46321636 = 7941^2 + 6806^2 .

It is an emirp because it is prime and its reverse (711183901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109381117 - 2¹¹ = 109379069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109381717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54690558 + 54690559.

It is an arithmetic number, because the mean of its divisors is an integer number (54690559).

Almost surely, 2^109381117 is an apocalyptic number.

It is an amenable number.

109381117 is a deficient number, since it is larger than the sum of its proper divisors (1).

109381117 is an equidigital number, since it uses as much as digits as its factorization.

109381117 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 31.

The square root of 109381117 is about 10458.5427761233. The cubic root of 109381117 is about 478.2417108793.

The spelling of 109381117 in words is "one hundred nine million, three hundred eighty-one thousand, one hundred seventeen".