144445172 has 12 divisors (see below), whose sum is σ = 261495780. Its totient is φ = 69732096.

The previous prime is 144445159. The next prime is 144445177. The reversal of 144445172 is 271544441.

It can be written as a sum of positive squares in 2 ways, for example, as 37405456 + 107039716 = 6116^2 + 10346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144445177) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 622493 + ... + 622724.

It is an arithmetic number, because the mean of its divisors is an integer number (21791315).

Almost surely, 2^144445172 is an apocalyptic number.

It is an amenable number.

144445172 is a deficient number, since it is larger than the sum of its proper divisors (117050608).

144445172 is a wasteful number, since it uses less digits than its factorization.

144445172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245250 (or 1245248 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 144445172 is about 12018.5345196492. The cubic root of 144445172 is about 524.6878531450.

The spelling of 144445172 in words is "one hundred forty-four million, four hundred forty-five thousand, one hundred seventy-two".