144478552 has 8 divisors (see below), whose sum is σ = 270897300. Its totient is φ = 72239272.

The previous prime is 144478541. The next prime is 144478553. The reversal of 144478552 is 255874441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144478553) by changing a digit.

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 as a sum of consecutive naturals, namely, 9029902 + ... + 9029917.

Almost surely, 2^144478552 is an apocalyptic number.

It is an amenable number.

144478552 is a deficient number, since it is larger than the sum of its proper divisors (126418748).

144478552 is a wasteful number, since it uses less digits than its factorization.

144478552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18059825 (or 18059821 counting only the distinct ones).

The product of its digits is 179200, while the sum is 40.

The square root of 144478552 is about 12019.9231278740. The cubic root of 144478552 is about 524.7282669374.

The spelling of 144478552 in words is "one hundred forty-four million, four hundred seventy-eight thousand, five hundred fifty-two".