144427025 has 12 divisors (see below), whose sum is σ = 179709852. Its totient is φ = 115141440.

The previous prime is 144427013. The next prime is 144427033. The reversal of 144427025 is 520724441.

It can be written as a sum of positive squares in 6 ways, for example, as 2531281 + 141895744 = 1591^2 + 11912^2 .

It is not a de Polignac number, because 144427025 - 2²⁰ = 143378449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2534 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (14975821).

Almost surely, 2^144427025 is an apocalyptic number.

It is an amenable number.

144427025 is a deficient number, since it is larger than the sum of its proper divisors (35282827).

144427025 is a wasteful number, since it uses less digits than its factorization.

144427025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020 (or 20015 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 144427025 is about 12017.7795370027. The cubic root of 144427025 is about 524.6658796190.

The spelling of 144427025 in words is "one hundred forty-four million, four hundred twenty-seven thousand, twenty-five".