2205249 has 4 divisors (see below), whose sum is σ = 2940336. Its totient is φ = 1470164.

The previous prime is 2205239. The next prime is 2205251. The reversal of 2205249 is 9425022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2205249 - 2⁴ = 2205233 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2205239) 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, 367539 + ... + 367544.

It is an arithmetic number, because the mean of its divisors is an integer number (735084).

2^2205249 is an apocalyptic number.

It is an amenable number.

2205249 is a deficient number, since it is larger than the sum of its proper divisors (735087).

2205249 is an equidigital number, since it uses as much as digits as its factorization.

2205249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735086.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2205249 is about 1485.0080807861. The cubic root of 2205249 is about 130.1624989626.

Subtracting from 2205249 its sum of digits (24), we obtain a square (2205225 = 1485²).

The spelling of 2205249 in words is "two million, two hundred five thousand, two hundred forty-nine".