2185259 has 4 divisors (see below), whose sum is σ = 2238600. Its totient is φ = 2131920.

The previous prime is 2185241. The next prime is 2185279. The reversal of 2185259 is 9525812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2185259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185279) 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, 26609 + ... + 26690.

It is an arithmetic number, because the mean of its divisors is an integer number (559650).

2^2185259 is an apocalyptic number.

2185259 is a deficient number, since it is larger than the sum of its proper divisors (53341).

2185259 is an equidigital number, since it uses as much as digits as its factorization.

2185259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53340.

The product of its digits is 7200, while the sum is 32.

The square root of 2185259 is about 1478.2621553703. The cubic root of 2185259 is about 129.7680083360.

The spelling of 2185259 in words is "two million, one hundred eighty-five thousand, two hundred fifty-nine".