2225144 has 8 divisors (see below), whose sum is σ = 4172160. Its totient is φ = 1112568.

The previous prime is 2225123. The next prime is 2225159. The reversal of 2225144 is 4415222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139064 + ... + 139079.

It is an arithmetic number, because the mean of its divisors is an integer number (521520).

2^2225144 is an apocalyptic number.

It is an amenable number.

2225144 is a deficient number, since it is larger than the sum of its proper divisors (1947016).

2225144 is a wasteful number, since it uses less digits than its factorization.

2225144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278149 (or 278145 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 2225144 is about 1491.6916571463. The cubic root of 2225144 is about 130.5527548584.

It can be divided in two parts, 2225 and 144, that multiplied together give a triangular number (320400 = T₈₀₀).

The spelling of 2225144 in words is "two million, two hundred twenty-five thousand, one hundred forty-four".