105173409 has 8 divisors (see below), whose sum is σ = 152979552. Its totient is φ = 63741440.

The previous prime is 105173389. The next prime is 105173479. The reversal of 105173409 is 904371501.

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

It is a cyclic number.

It is not a de Polignac number, because 105173409 - 2¹¹ = 105171361 is a prime.

It is a super-2 number, since 2×105173409² = 22122891921362562, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105173479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593504 + ... + 1593569.

It is an arithmetic number, because the mean of its divisors is an integer number (19122444).

Almost surely, 2^105173409 is an apocalyptic number.

It is an amenable number.

105173409 is a deficient number, since it is larger than the sum of its proper divisors (47806143).

105173409 is a wasteful number, since it uses less digits than its factorization.

105173409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187087.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 105173409 is about 10255.4087680599. The cubic root of 105173409 is about 472.0289664905.

The spelling of 105173409 in words is "one hundred five million, one hundred seventy-three thousand, four hundred nine".