109169305 has 12 divisors (see below), whose sum is σ = 152391780. Its totient is φ = 74858784.

The previous prime is 109169287. The next prime is 109169309. The reversal of 109169305 is 503961901.

It can be written as a sum of positive squares in 2 ways, for example, as 79281216 + 29888089 = 8904^2 + 5467^2 .

It is not a de Polignac number, because 109169305 - 2⁵ = 109169273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109169309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222550 + ... + 223039.

It is an arithmetic number, because the mean of its divisors is an integer number (12699315).

Almost surely, 2^109169305 is an apocalyptic number.

It is an amenable number.

109169305 is a deficient number, since it is larger than the sum of its proper divisors (43222475).

109169305 is an equidigital number, since it uses as much as digits as its factorization.

109169305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445608 (or 445601 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 109169305 is about 10448.4116017699. The cubic root of 109169305 is about 477.9328129863.

The spelling of 109169305 in words is "one hundred nine million, one hundred sixty-nine thousand, three hundred five".