144459856 has 10 divisors (see below), whose sum is σ = 279891002. Its totient is φ = 72229920.

The previous prime is 144459853. The next prime is 144459881. The reversal of 144459856 is 658954441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 70224400 = 8616^2 + 8380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144459853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4514355 + ... + 4514386.

Almost surely, 2^144459856 is an apocalyptic number.

144459856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144459856 is a deficient number, since it is larger than the sum of its proper divisors (135431146).

144459856 is an equidigital number, since it uses as much as digits as its factorization.

144459856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028749 (or 9028743 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 144459856 is about 12019.1453939122. The cubic root of 144459856 is about 524.7056321063.

The spelling of 144459856 in words is "one hundred forty-four million, four hundred fifty-nine thousand, eight hundred fifty-six".