105728169 has 8 divisors (see below), whose sum is σ = 141037792. Its totient is φ = 70452000.

The previous prime is 105728167. The next prime is 105728209. The reversal of 105728169 is 961827501.

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

It is not a de Polignac number, because 105728169 - 2¹ = 105728167 is a prime.

It is a super-2 number, since 2×105728169² = 22356891440185122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105728167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294 + ... + 14544.

It is an arithmetic number, because the mean of its divisors is an integer number (17629724).

Almost surely, 2^105728169 is an apocalyptic number.

It is an amenable number.

105728169 is a deficient number, since it is larger than the sum of its proper divisors (35309623).

105728169 is a wasteful number, since it uses less digits than its factorization.

105728169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16727.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 105728169 is about 10282.4203862709. The cubic root of 105728169 is about 472.8574513044.

The spelling of 105728169 in words is "one hundred five million, seven hundred twenty-eight thousand, one hundred sixty-nine".