2102062805 has 8 divisors (see below), whose sum is σ = 2632148352. Its totient is φ = 1608534928.

The previous prime is 2102062789. The next prime is 2102062819. The reversal of 2102062805 is 5082602012.

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 2102062805 - 2⁴ = 2102062789 is a prime.

It is a Duffinian number.

It is a congruent 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, 9139289 + ... + 9139518.

It is an arithmetic number, because the mean of its divisors is an integer number (329018544).

Almost surely, 2^2102062805 is an apocalyptic number.

It is an amenable number.

2102062805 is a deficient number, since it is larger than the sum of its proper divisors (530085547).

2102062805 is a wasteful number, since it uses less digits than its factorization.

2102062805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18278835.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2102062805 is about 45848.2584729235. The cubic root of 2102062805 is about 1280.9983269944.

Adding to 2102062805 its reverse (5082602012), we get a palindrome (7184664817).

The spelling of 2102062805 in words is "two billion, one hundred two million, sixty-two thousand, eight hundred five".