20941105 has 4 divisors (see below), whose sum is σ = 25129332. Its totient is φ = 16752880.

The previous prime is 20941091. The next prime is 20941163. The reversal of 20941105 is 50114902.

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 5948721 + 14992384 = 2439^2 + 3872^2 .

It is not a de Polignac number, because 20941105 - 2¹¹ = 20939057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2094106 + ... + 2094115.

It is an arithmetic number, because the mean of its divisors is an integer number (6282333).

Almost surely, 2^20941105 is an apocalyptic number.

It is an amenable number.

20941105 is a deficient number, since it is larger than the sum of its proper divisors (4188227).

20941105 is an equidigital number, since it uses as much as digits as its factorization.

20941105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188226.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 20941105 is about 4576.1452118568. The cubic root of 20941105 is about 275.6342605335.

It can be divided in two parts, 209 and 41105, that added together give a palindrome (41314).

The spelling of 20941105 in words is "twenty million, nine hundred forty-one thousand, one hundred five".