2197249 has 4 divisors (see below), whose sum is σ = 2268160. Its totient is φ = 2126340.

The previous prime is 2197241. The next prime is 2197253. The reversal of 2197249 is 9427912.

2197249 = 2² + 3² + ... + 187².

It is a happy number.

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 2197249 - 2³ = 2197241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35409 + ... + 35470.

It is an arithmetic number, because the mean of its divisors is an integer number (567040).

2^2197249 is an apocalyptic number.

It is an amenable number.

2197249 is a deficient number, since it is larger than the sum of its proper divisors (70911).

2197249 is an equidigital number, since it uses as much as digits as its factorization.

2197249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70910.

The product of its digits is 9072, while the sum is 34.

The square root of 2197249 is about 1482.3120454209. The cubic root of 2197249 is about 130.0049110571.

The spelling of 2197249 in words is "two million, one hundred ninety-seven thousand, two hundred forty-nine".