144144997 has 8 divisors (see below), whose sum is σ = 147061976. Its totient is φ = 141253632.

The previous prime is 144144977. The next prime is 144145061. The reversal of 144144997 is 799441441.

It can be written as a sum of positive squares in 4 ways, for example, as 41912676 + 102232321 = 6474^2 + 10111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144144997 - 2¹⁵ = 144112229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144144937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5173 + ... + 17749.

It is an arithmetic number, because the mean of its divisors is an integer number (18382747).

Almost surely, 2^144144997 is an apocalyptic number.

It is an amenable number.

144144997 is a deficient number, since it is larger than the sum of its proper divisors (2916979).

144144997 is a wasteful number, since it uses less digits than its factorization.

144144997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807.

The product of its digits is 145152, while the sum is 43.

The square root of 144144997 is about 12006.0400215891. The cubic root of 144144997 is about 524.3241455861.

The spelling of 144144997 in words is "one hundred forty-four million, one hundred forty-four thousand, nine hundred ninety-seven".