2144242225 has 12 divisors (see below), whose sum is σ = 2715433344. Its totient is φ = 1678895120.

The previous prime is 2144242189. The next prime is 2144242273. The reversal of 2144242225 is 5222424412.

It is a happy number.

It is not a de Polignac number, because 2144242225 - 2²³ = 2135853617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144242193 and 2144242202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911269 + ... + 913618.

It is an arithmetic number, because the mean of its divisors is an integer number (226286112).

Almost surely, 2^2144242225 is an apocalyptic number.

2144242225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2144242225 is a deficient number, since it is larger than the sum of its proper divisors (571191119).

2144242225 is a wasteful number, since it uses less digits than its factorization.

2144242225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824944 (or 1824939 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 2144242225 is about 46305.9631689051. The cubic root of 2144242225 is about 1289.5097039055.

Adding to 2144242225 its reverse (5222424412), we get a palindrome (7366666637).

The spelling of 2144242225 in words is "two billion, one hundred forty-four million, two hundred forty-two thousand, two hundred twenty-five".