2185245 has 16 divisors (see below), whose sum is σ = 3885120. Its totient is φ = 1165392.

The previous prime is 2185241. The next prime is 2185279. The reversal of 2185245 is 5425812.

It is a happy number.

It is not a de Polignac number, because 2185245 - 2² = 2185241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7959 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (242820).

2^2185245 is an apocalyptic number.

It is an amenable number.

2185245 is a deficient number, since it is larger than the sum of its proper divisors (1699875).

2185245 is a wasteful number, since it uses less digits than its factorization.

2185245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16201 (or 16195 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2185245 is about 1478.2574200727. The cubic root of 2185245 is about 129.7677312131.

The spelling of 2185245 in words is "two million, one hundred eighty-five thousand, two hundred forty-five".