2105820541 has 8 divisors (see below), whose sum is σ = 2297710944. Its totient is φ = 1914005520.

The previous prime is 2105820517. The next prime is 2105820551. The reversal of 2105820541 is 1450285012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105820541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105820511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50770 + ... + 82396.

It is an arithmetic number, because the mean of its divisors is an integer number (287213868).

Almost surely, 2^2105820541 is an apocalyptic number.

It is an amenable number.

2105820541 is a deficient number, since it is larger than the sum of its proper divisors (191890403).

2105820541 is a wasteful number, since it uses less digits than its factorization.

2105820541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37691.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 2105820541 is about 45889.2203137077. The cubic root of 2105820541 is about 1281.7611947831.

The spelling of 2105820541 in words is "two billion, one hundred five million, eight hundred twenty thousand, five hundred forty-one".