2199249 has 12 divisors (see below), whose sum is σ = 3421236. Its totient is φ = 1353312.

The previous prime is 2199247. The next prime is 2199277. The reversal of 2199249 is 9429912.

It can be written as a sum of positive squares in 2 ways, for example, as 1065024 + 1134225 = 1032^2 + 1065^2 .

It is not a de Polignac number, because 2199249 - 2¹ = 2199247 is a prime.

2199249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2199247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9282 + ... + 9515.

It is an arithmetic number, because the mean of its divisors is an integer number (285103).

2^2199249 is an apocalyptic number.

It is an amenable number.

2199249 is a deficient number, since it is larger than the sum of its proper divisors (1221987).

2199249 is a wasteful number, since it uses less digits than its factorization.

2199249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18816 (or 18813 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 2199249 is about 1482.9865137620. The cubic root of 2199249 is about 130.0443438467.

The spelling of 2199249 in words is "two million, one hundred ninety-nine thousand, two hundred forty-nine".