2105471 has 4 divisors (see below), whose sum is σ = 2118552. Its totient is φ = 2092392.

The previous prime is 2105449. The next prime is 2105483. The reversal of 2105471 is 1745012.

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 2105471 - 2⁶ = 2105407 is a prime.

It is a super-3 number, since 3×2105471³ = 28000710193066206333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105431) 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, 6296 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (529638).

2^2105471 is an apocalyptic number.

2105471 is a deficient number, since it is larger than the sum of its proper divisors (13081).

2105471 is a wasteful number, since it uses less digits than its factorization.

2105471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13080.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 2105471 is about 1451.0241210952. The cubic root of 2105471 is about 128.1690271854.

The spelling of 2105471 in words is "two million, one hundred five thousand, four hundred seventy-one".