109378165 has 16 divisors (see below), whose sum is σ = 144361728. Its totient is φ = 79050816.

The previous prime is 109378141. The next prime is 109378189. The reversal of 109378165 is 561873901.

It is an interprime number because it is at equal distance from previous prime (109378141) and next prime (109378189).

It is not a de Polignac number, because 109378165 - 2¹¹ = 109376117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14847 + ... + 20956.

It is an arithmetic number, because the mean of its divisors is an integer number (9022608).

Almost surely, 2^109378165 is an apocalyptic number.

It is an amenable number.

109378165 is a deficient number, since it is larger than the sum of its proper divisors (34983563).

109378165 is a wasteful number, since it uses less digits than its factorization.

109378165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35868.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109378165 is about 10458.4016465232. The cubic root of 109378165 is about 478.2374085455.

The spelling of 109378165 in words is "one hundred nine million, three hundred seventy-eight thousand, one hundred sixty-five".