2108205545 has 8 divisors (see below), whose sum is σ = 2554408896. Its totient is φ = 1670189616.

The previous prime is 2108205503. The next prime is 2108205557. The reversal of 2108205545 is 5455028012.

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-2108205545 is a prime.

It is a Duffinian number.

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, 2046287 + ... + 2047316.

It is an arithmetic number, because the mean of its divisors is an integer number (319301112).

Almost surely, 2^2108205545 is an apocalyptic number.

It is an amenable number.

2108205545 is a deficient number, since it is larger than the sum of its proper divisors (446203351).

2108205545 is a wasteful number, since it uses less digits than its factorization.

2108205545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093711.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 2108205545 is about 45915.1994986410. The cubic root of 2108205545 is about 1282.2449099818.

The spelling of 2108205545 in words is "two billion, one hundred eight million, two hundred five thousand, five hundred forty-five".