2105605213 has 8 divisors (see below), whose sum is σ = 2276330720. Its totient is φ = 1940870160.

The previous prime is 2105605199. The next prime is 2105605223. The reversal of 2105605213 is 3125065012.

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 2105605213 - 2¹⁷ = 2105474141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105605223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496883 + ... + 1498288.

It is an arithmetic number, because the mean of its divisors is an integer number (284541340).

Almost surely, 2^2105605213 is an apocalyptic number.

It is an amenable number.

2105605213 is a deficient number, since it is larger than the sum of its proper divisors (170725507).

2105605213 is a wasteful number, since it uses less digits than its factorization.

2105605213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995227.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2105605213 is about 45886.8740818112. The cubic root of 2105605213 is about 1281.7175050072.

The spelling of 2105605213 in words is "two billion, one hundred five million, six hundred five thousand, two hundred thirteen".