144459975 has 24 divisors (see below), whose sum is σ = 260554752. Its totient is φ = 70040800.

The previous prime is 144459971. The next prime is 144460007. The reversal of 144459975 is 579954441.

It is a happy number.

It is not a de Polignac number, because 144459975 - 2² = 144459971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144459971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86727 + ... + 88376.

It is an arithmetic number, because the mean of its divisors is an integer number (10856448).

Almost surely, 2^144459975 is an apocalyptic number.

144459975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144459975 is a deficient number, since it is larger than the sum of its proper divisors (116094777).

144459975 is a wasteful number, since it uses less digits than its factorization.

144459975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175127 (or 175122 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 144459975 is about 12019.1503443463. The cubic root of 144459975 is about 524.7057761831.

The spelling of 144459975 in words is "one hundred forty-four million, four hundred fifty-nine thousand, nine hundred seventy-five".