20162105 has 16 divisors (see below), whose sum is σ = 25185600. Its totient is φ = 15476160.

The previous prime is 20162071. The next prime is 20162113. The reversal of 20162105 is 50126102.

It is not a de Polignac number, because 20162105 - 2⁶ = 20162041 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 30266 + ... + 30924.

It is an arithmetic number, because the mean of its divisors is an integer number (1574100).

Almost surely, 2^20162105 is an apocalyptic number.

It is an amenable number.

20162105 is a deficient number, since it is larger than the sum of its proper divisors (5023495).

20162105 is a wasteful number, since it uses less digits than its factorization.

20162105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20162105 is about 4490.2232683910. The cubic root of 20162105 is about 272.1731569367.

Adding to 20162105 its reverse (50126102), we get a palindrome (70288207).

The spelling of 20162105 in words is "twenty million, one hundred sixty-two thousand, one hundred five".