2150012105 has 4 divisors (see below), whose sum is σ = 2580014532. Its totient is φ = 1720009680.

The previous prime is 2150012077. The next prime is 2150012159. The reversal of 2150012105 is 5012100512.

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 906250816 + 1243761289 = 30104^2 + 35267^2 .

It is not a de Polignac number, because 2150012105 - 2⁸ = 2150011849 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215001206 + ... + 215001215.

It is an arithmetic number, because the mean of its divisors is an integer number (645003633).

Almost surely, 2^2150012105 is an apocalyptic number.

It is an amenable number.

2150012105 is a deficient number, since it is larger than the sum of its proper divisors (430002427).

2150012105 is an equidigital number, since it uses as much as digits as its factorization.

2150012105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430002426.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 2150012105 is about 46368.2230088668. The cubic root of 2150012105 is about 1290.6653029135.

Adding to 2150012105 its reverse (5012100512), we get a palindrome (7162112617).

The spelling of 2150012105 in words is "two billion, one hundred fifty million, twelve thousand, one hundred five".