2185261 has 8 divisors (see below), whose sum is σ = 2376864. Its totient is φ = 1997040.

The previous prime is 2185241. The next prime is 2185279. The reversal of 2185261 is 1625812.

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

It is a cyclic number.

It is not a de Polignac number, because 2185261 - 2¹³ = 2177069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 2176.

It is an arithmetic number, because the mean of its divisors is an integer number (297108).

2^2185261 is an apocalyptic number.

It is an amenable number.

2185261 is a deficient number, since it is larger than the sum of its proper divisors (191603).

2185261 is a wasteful number, since it uses less digits than its factorization.

2185261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 960, while the sum is 25.

The square root of 2185261 is about 1478.2628318401. The cubic root of 2185261 is about 129.7680479249.

The spelling of 2185261 in words is "two million, one hundred eighty-five thousand, two hundred sixty-one".