109171379 has 2 divisors, whose sum is σ = 109171380. Its totient is φ = 109171378.

The previous prime is 109171357. The next prime is 109171393. The reversal of 109171379 is 973171901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109171379 - 2¹² = 109167283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109171319) 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, 54585689 + 54585690.

It is an arithmetic number, because the mean of its divisors is an integer number (54585690).

Almost surely, 2^109171379 is an apocalyptic number.

109171379 is a deficient number, since it is larger than the sum of its proper divisors (1).

109171379 is an equidigital number, since it uses as much as digits as its factorization.

109171379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11907, while the sum is 38.

The square root of 109171379 is about 10448.5108508342. The cubic root of 109171379 is about 477.9358395586.

The spelling of 109171379 in words is "one hundred nine million, one hundred seventy-one thousand, three hundred seventy-nine".