144471664 has 10 divisors (see below), whose sum is σ = 279913880. Its totient is φ = 72235824.

The previous prime is 144471637. The next prime is 144471667. The reversal of 144471664 is 466174441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144471667) 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 as a sum of consecutive naturals, namely, 4514724 + ... + 4514755.

It is an arithmetic number, because the mean of its divisors is an integer number (27991388).

Almost surely, 2^144471664 is an apocalyptic number.

It is an amenable number.

144471664 is a deficient number, since it is larger than the sum of its proper divisors (135442216).

144471664 is an equidigital number, since it uses as much as digits as its factorization.

144471664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029487 (or 9029481 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 144471664 is about 12019.6366001639. The cubic root of 144471664 is about 524.7199280163.

The spelling of 144471664 in words is "one hundred forty-four million, four hundred seventy-one thousand, six hundred sixty-four".