144944573 has 4 divisors (see below), whose sum is σ = 145063740. Its totient is φ = 144825408.

The previous prime is 144944563. The next prime is 144944593. The reversal of 144944573 is 375449441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134977924 + 9966649 = 11618^2 + 3157^2 .

It is a cyclic number.

It is not a de Polignac number, because 144944573 - 2⁶ = 144944509 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 144944573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144944563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57740 + ... + 60197.

It is an arithmetic number, because the mean of its divisors is an integer number (36265935).

Almost surely, 2^144944573 is an apocalyptic number.

It is an amenable number.

144944573 is a deficient number, since it is larger than the sum of its proper divisors (119167).

144944573 is a wasteful number, since it uses less digits than its factorization.

144944573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119166.

The product of its digits is 241920, while the sum is 41.

The square root of 144944573 is about 12039.2928779061. The cubic root of 144944573 is about 525.2918383468.

The spelling of 144944573 in words is "one hundred forty-four million, nine hundred forty-four thousand, five hundred seventy-three".