109168399 has 2 divisors, whose sum is σ = 109168400. Its totient is φ = 109168398.

The previous prime is 109168369. The next prime is 109168417. The reversal of 109168399 is 993861901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109168399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109168369) 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, 54584199 + 54584200.

It is an arithmetic number, because the mean of its divisors is an integer number (54584200).

Almost surely, 2^109168399 is an apocalyptic number.

109168399 is a deficient number, since it is larger than the sum of its proper divisors (1).

109168399 is an equidigital number, since it uses as much as digits as its factorization.

109168399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 109168399 is about 10448.3682458076. The cubic root of 109168399 is about 477.9314908554.

The spelling of 109168399 in words is "one hundred nine million, one hundred sixty-eight thousand, three hundred ninety-nine".