2247121 has 4 divisors (see below), whose sum is σ = 2307892. Its totient is φ = 2186352.

The previous prime is 2247109. The next prime is 2247127. The reversal of 2247121 is 1217422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 746496 = 1225^2 + 864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2247121 - 2⁹ = 2246609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247127) 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, 30330 + ... + 30403.

It is an arithmetic number, because the mean of its divisors is an integer number (576973).

2^2247121 is an apocalyptic number.

It is an amenable number.

2247121 is a deficient number, since it is larger than the sum of its proper divisors (60771).

2247121 is an equidigital number, since it uses as much as digits as its factorization.

2247121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60770.

The product of its digits is 224, while the sum is 19.

The square root of 2247121 is about 1499.0400261501. The cubic root of 2247121 is about 130.9811561186.

The spelling of 2247121 in words is "two million, two hundred forty-seven thousand, one hundred twenty-one".