2185071 has 16 divisors (see below), whose sum is σ = 3381504. Its totient is φ = 1229184.

The previous prime is 2185037. The next prime is 2185091. The reversal of 2185071 is 1705812.

It is not a de Polignac number, because 2185071 - 2¹⁰ = 2184047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631 + ... + 2183.

It is an arithmetic number, because the mean of its divisors is an integer number (211344).

2^2185071 is an apocalyptic number.

2185071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2185071 is a deficient number, since it is larger than the sum of its proper divisors (1196433).

2185071 is a wasteful number, since it uses less digits than its factorization.

2185071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2185071 is about 1478.1985658226. The cubic root of 2185071 is about 129.7642868724.

Adding to 2185071 its sum of digits (24), we get a triangular number (2185095 = T₂₀₉₀).

The spelling of 2185071 in words is "two million, one hundred eighty-five thousand, seventy-one".