2106705163 has 4 divisors (see below), whose sum is σ = 2110222800. Its totient is φ = 2103187528.

The previous prime is 2106705143. The next prime is 2106705169. The reversal of 2106705163 is 3615076012.

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 2106705163 - 2¹³ = 2106696971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2106705169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757920 + ... + 1759117.

It is an arithmetic number, because the mean of its divisors is an integer number (527555700).

Almost surely, 2^2106705163 is an apocalyptic number.

2106705163 is a deficient number, since it is larger than the sum of its proper divisors (3517637).

2106705163 is an equidigital number, since it uses as much as digits as its factorization.

2106705163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517636.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2106705163 is about 45898.8579705421. The cubic root of 2106705163 is about 1281.9406522111.

The spelling of 2106705163 in words is "two billion, one hundred six million, seven hundred five thousand, one hundred sixty-three".