105604165 has 4 divisors (see below), whose sum is σ = 126725004. Its totient is φ = 84483328.

The previous prime is 105604141. The next prime is 105604189. The reversal of 105604165 is 561406501.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (105604141) and next prime (105604189).

It can be written as a sum of positive squares in 2 ways, for example, as 25573249 + 80030916 = 5057^2 + 8946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105604165 is a prime.

It is a super-2 number, since 2×105604165² = 22304479330694450, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10560412 + ... + 10560421.

It is an arithmetic number, because the mean of its divisors is an integer number (31681251).

Almost surely, 2^105604165 is an apocalyptic number.

It is an amenable number.

105604165 is a deficient number, since it is larger than the sum of its proper divisors (21120839).

105604165 is an equidigital number, since it uses as much as digits as its factorization.

105604165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21120838.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 105604165 is about 10276.3887139403. The cubic root of 105604165 is about 472.6725142945.

The spelling of 105604165 in words is "one hundred five million, six hundred four thousand, one hundred sixty-five".