109997165 has 8 divisors (see below), whose sum is σ = 132069528. Its totient is φ = 87949120.

The previous prime is 109997149. The next prime is 109997221. The reversal of 109997165 is 561799901.

It can be written as a sum of positive squares in 4 ways, for example, as 8773444 + 101223721 = 2962^2 + 10061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109997165 - 2⁴ = 109997149 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 7 ways as a sum of consecutive naturals, for example, 6095 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (16508691).

Almost surely, 2^109997165 is an apocalyptic number.

It is an amenable number.

109997165 is a deficient number, since it is larger than the sum of its proper divisors (22072363).

109997165 is an equidigital number, since it uses as much as digits as its factorization.

109997165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159.

The product of its (nonzero) digits is 153090, while the sum is 47.

The square root of 109997165 is about 10487.9533275087. The cubic root of 109997165 is about 479.1378694057.

The spelling of 109997165 in words is "one hundred nine million, nine hundred ninety-seven thousand, one hundred sixty-five".