2459221 has 4 divisors (see below), whose sum is σ = 2519244. Its totient is φ = 2399200.

The previous prime is 2459209. The next prime is 2459239. The reversal of 2459221 is 1229542.

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 239121 + 2220100 = 489^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2459221 - 2¹⁵ = 2426453 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 (2459201) 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, 29950 + ... + 30031.

It is an arithmetic number, because the mean of its divisors is an integer number (629811).

2^2459221 is an apocalyptic number.

It is an amenable number.

2459221 is a deficient number, since it is larger than the sum of its proper divisors (60023).

2459221 is an equidigital number, since it uses as much as digits as its factorization.

2459221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60022.

The product of its digits is 1440, while the sum is 25.

The square root of 2459221 is about 1568.1903583430. The cubic root of 2459221 is about 134.9788901606.

The spelling of 2459221 in words is "two million, four hundred fifty-nine thousand, two hundred twenty-one".