144578497 has 16 divisors (see below), whose sum is σ = 168981120. Its totient is φ = 121137408.

The previous prime is 144578491. The next prime is 144578503. The reversal of 144578497 is 794875441.

It is an interprime number because it is at equal distance from previous prime (144578491) and next prime (144578503).

It is not a de Polignac number, because 144578497 - 2¹⁵ = 144545729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144578497.

It is not an unprimeable number, because it can be changed into a prime (144578491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80473 + ... + 82249.

It is an arithmetic number, because the mean of its divisors is an integer number (10561320).

Almost surely, 2^144578497 is an apocalyptic number.

It is an amenable number.

144578497 is a deficient number, since it is larger than the sum of its proper divisors (24402623).

144578497 is a wasteful number, since it uses less digits than its factorization.

144578497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040.

The product of its digits is 1128960, while the sum is 49.

The square root of 144578497 is about 12024.0798816375. The cubic root of 144578497 is about 524.8492350156.

The spelling of 144578497 in words is "one hundred forty-four million, five hundred seventy-eight thousand, four hundred ninety-seven".