2225481 has 4 divisors (see below), whose sum is σ = 2967312. Its totient is φ = 1483652.

The previous prime is 2225473. The next prime is 2225491. The reversal of 2225481 is 1845222.

2225481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2225481 - 2³ = 2225473 is a prime.

It is a super-2 number, since 2×2225481² = 9905531362722, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2225401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370911 + ... + 370916.

It is an arithmetic number, because the mean of its divisors is an integer number (741828).

2^2225481 is an apocalyptic number.

2225481 is the 944-th centered pentagonal number.

It is an amenable number.

2225481 is a deficient number, since it is larger than the sum of its proper divisors (741831).

2225481 is an equidigital number, since it uses as much as digits as its factorization.

2225481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741830.

The product of its digits is 1280, while the sum is 24.

The square root of 2225481 is about 1491.8046118711. The cubic root of 2225481 is about 130.5593453019.

The spelling of 2225481 in words is "two million, two hundred twenty-five thousand, four hundred eighty-one".