2141905105 has 8 divisors (see below), whose sum is σ = 2575440000. Its totient is φ = 1710088176.

The previous prime is 2141905097. The next prime is 2141905127. The reversal of 2141905105 is 5015091412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2141905105 - 2³ = 2141905097 is a prime.

It is a super-2 number, since 2×2141905105² = 9175514957650122050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426745 + ... + 431734.

It is an arithmetic number, because the mean of its divisors is an integer number (321930000).

Almost surely, 2^2141905105 is an apocalyptic number.

It is an amenable number.

2141905105 is a deficient number, since it is larger than the sum of its proper divisors (433534895).

2141905105 is an equidigital number, since it uses as much as digits as its factorization.

2141905105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858983.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 2141905105 is about 46280.7206620640. The cubic root of 2141905105 is about 1289.0410325818.

Adding to 2141905105 its reverse (5015091412), we get a palindrome (7156996517).

The spelling of 2141905105 in words is "two billion, one hundred forty-one million, nine hundred five thousand, one hundred five".