2185513 has 8 divisors (see below), whose sum is σ = 2509920. Its totient is φ = 1882080.

The previous prime is 2185511. The next prime is 2185517. The reversal of 2185513 is 3155812.

It is a happy number.

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 2185513 - 2¹ = 2185511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2185511) 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, 5020 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (313740).

2^2185513 is an apocalyptic number.

It is an amenable number.

2185513 is a deficient number, since it is larger than the sum of its proper divisors (324407).

2185513 is a wasteful number, since it uses less digits than its factorization.

2185513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10487.

The product of its digits is 1200, while the sum is 25.

The square root of 2185513 is about 1478.3480645640. The cubic root of 2185513 is about 129.7730359318.

Subtracting 2185513 from its reverse (3155812), we obtain a cube (970299 = 99³).

The spelling of 2185513 in words is "two million, one hundred eighty-five thousand, five hundred thirteen".