2241209 has 2 divisors, whose sum is σ = 2241210. Its totient is φ = 2241208.

The previous prime is 2241199. The next prime is 2241247. The reversal of 2241209 is 9021422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 1092025 = 1072^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2241209 - 2⁴ = 2241193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2241299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120604 + 1120605.

It is an arithmetic number, because the mean of its divisors is an integer number (1120605).

2^2241209 is an apocalyptic number.

It is an amenable number.

2241209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2241209 is an equidigital number, since it uses as much as digits as its factorization.

2241209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2241209 is about 1497.0667987769. The cubic root of 2241209 is about 130.8661881688.

The spelling of 2241209 in words is "two million, two hundred forty-one thousand, two hundred nine".