144299497 has 8 divisors (see below), whose sum is σ = 146349000. Its totient is φ = 142264704.

The previous prime is 144299479. The next prime is 144299501. The reversal of 144299497 is 794992441.

It can be written as a sum of positive squares in 4 ways, for example, as 2903616 + 141395881 = 1704^2 + 11891^2 .

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 144299497 - 2⁷ = 144299369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144299497.

It is not an unprimeable number, because it can be changed into a prime (144294497) 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, 16879 + ... + 23947.

It is an arithmetic number, because the mean of its divisors is an integer number (18293625).

Almost surely, 2^144299497 is an apocalyptic number.

It is an amenable number.

144299497 is a deficient number, since it is larger than the sum of its proper divisors (2049503).

144299497 is a wasteful number, since it uses less digits than its factorization.

144299497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355.

The product of its digits is 653184, while the sum is 49.

The square root of 144299497 is about 12012.4725598022. The cubic root of 144299497 is about 524.5114087745.

The spelling of 144299497 in words is "one hundred forty-four million, two hundred ninety-nine thousand, four hundred ninety-seven".