144457972 has 12 divisors (see below), whose sum is σ = 252887236. Its totient is φ = 72204480.

The previous prime is 144457939. The next prime is 144457979. The reversal of 144457972 is 279754441.

It can be written as a sum of positive squares in 2 ways, for example, as 12988816 + 131469156 = 3604^2 + 11466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144457979) 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 in 3 ways as a sum of consecutive naturals, for example, 16072 + ... + 23392.

Almost surely, 2^144457972 is an apocalyptic number.

It is an amenable number.

144457972 is a deficient number, since it is larger than the sum of its proper divisors (108429264).

144457972 is a wasteful number, since it uses less digits than its factorization.

144457972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12258 (or 12256 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 144457972 is about 12019.0670186999. The cubic root of 144457972 is about 524.7033510811.

The spelling of 144457972 in words is "one hundred forty-four million, four hundred fifty-seven thousand, nine hundred seventy-two".