2185331 has 4 divisors (see below), whose sum is σ = 2244432. Its totient is φ = 2126232.

The previous prime is 2185297. The next prime is 2185343. The reversal of 2185331 is 1335812.

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 2185331 - 2¹⁰ = 2184307 is a prime.

It is a super-2 number, since 2×2185331² = 9551343159122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2185297 and 2185306.

It is not an unprimeable number, because it can be changed into a prime (2181331) 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, 29495 + ... + 29568.

It is an arithmetic number, because the mean of its divisors is an integer number (561108).

2^2185331 is an apocalyptic number.

2185331 is a deficient number, since it is larger than the sum of its proper divisors (59101).

2185331 is an equidigital number, since it uses as much as digits as its factorization.

2185331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59100.

The product of its digits is 720, while the sum is 23.

The square root of 2185331 is about 1478.2865080897. The cubic root of 2185331 is about 129.7694335208.

The spelling of 2185331 in words is "two million, one hundred eighty-five thousand, three hundred thirty-one".