10985105 has 4 divisors (see below), whose sum is σ = 13182132. Its totient is φ = 8788080.

The previous prime is 10985101. The next prime is 10985123. The reversal of 10985105 is 50158901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 3845521 = 2672^2 + 1961^2 .

It is not a de Polignac number, because 10985105 - 2² = 10985101 is a prime.

It is a super-2 number, since 2×10985105² = 241345063722050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10985101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098506 + ... + 1098515.

It is an arithmetic number, because the mean of its divisors is an integer number (3295533).

Almost surely, 2^10985105 is an apocalyptic number.

It is an amenable number.

10985105 is a deficient number, since it is larger than the sum of its proper divisors (2197027).

10985105 is an equidigital number, since it uses as much as digits as its factorization.

10985105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197026.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 10985105 is about 3314.3785239468. The cubic root of 10985105 is about 222.2975813398.

The spelling of 10985105 in words is "ten million, nine hundred eighty-five thousand, one hundred five".