2105795247 has 4 divisors (see below), whose sum is σ = 2807727000. Its totient is φ = 1403863496.

The previous prime is 2105795243. The next prime is 2105795267. The reversal of 2105795247 is 7425975012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2105795247 - 2² = 2105795243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105795199 and 2105795208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105795243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 350965872 + ... + 350965877.

It is an arithmetic number, because the mean of its divisors is an integer number (701931750).

Almost surely, 2^2105795247 is an apocalyptic number.

2105795247 is a deficient number, since it is larger than the sum of its proper divisors (701931753).

2105795247 is an equidigital number, since it uses as much as digits as its factorization.

2105795247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701931752.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 2105795247 is about 45888.9447143863. The cubic root of 2105795247 is about 1281.7560628172.

The spelling of 2105795247 in words is "two billion, one hundred five million, seven hundred ninety-five thousand, two hundred forty-seven".