2105140164 has 24 divisors (see below), whose sum is σ = 5026227360. Its totient is φ = 685394304.

The previous prime is 2105140151. The next prime is 2105140181. The reversal of 2105140164 is 4610415012.

It is a happy number.

It is a super-2 number, since 2×2105140164² = 8863230220171893792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039349 + ... + 2040380.

It is an arithmetic number, because the mean of its divisors is an integer number (209426140).

Almost surely, 2^2105140164 is an apocalyptic number.

It is an amenable number.

2105140164 is an abundant number, since it is smaller than the sum of its proper divisors (2921087196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105140164 is a wasteful number, since it uses less digits than its factorization.

2105140164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079779 (or 4079777 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2105140164 is about 45881.8064596415. The cubic root of 2105140164 is about 1281.6231369956.

Adding to 2105140164 its reverse (4610415012), we get a palindrome (6715555176).

The spelling of 2105140164 in words is "two billion, one hundred five million, one hundred forty thousand, one hundred sixty-four".