2102705 has 8 divisors (see below), whose sum is σ = 2752704. Its totient is φ = 1529200.

The previous prime is 2102693. The next prime is 2102717. The reversal of 2102705 is 5072012.

It is an interprime number because it is at equal distance from previous prime (2102693) and next prime (2102717).

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

It is not a de Polignac number, because 2102705 - 2¹⁰ = 2101681 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, 19061 + ... + 19170.

It is an arithmetic number, because the mean of its divisors is an integer number (344088).

2^2102705 is an apocalyptic number.

It is an amenable number.

2102705 is a deficient number, since it is larger than the sum of its proper divisors (649999).

2102705 is a wasteful number, since it uses less digits than its factorization.

2102705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38247.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 2102705 is about 1450.0706879321. The cubic root of 2102705 is about 128.1128765051.

Adding to 2102705 its reverse (5072012), we get a palindrome (7174717).

The spelling of 2102705 in words is "two million, one hundred two thousand, seven hundred five".