143444444024221 has 8 divisors (see below), whose sum is σ = 151974013571640. Its totient is φ = 134925059040768.

The previous prime is 143444444024213. The next prime is 143444444024239. The reversal of 143444444024221 is 122420444444341.

It can be written as a sum of positive squares in 4 ways, for example, as 25195239704196 + 118249204320025 = 5019486^2 + 10874245^2 .

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 143444444024221 - 2³ = 143444444024213 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 (143444444024291) 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, 2546111986 + ... + 2546168323.

It is an arithmetic number, because the mean of its divisors is an integer number (18996751696455).

Almost surely, 2^{143444444024221} is an apocalyptic number.

It is an amenable number.

143444444024221 is a deficient number, since it is larger than the sum of its proper divisors (8529569547419).

143444444024221 is a wasteful number, since it uses less digits than its factorization.

143444444024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092281983.

The product of its (nonzero) digits is 1572864, while the sum is 43.

Adding to 143444444024221 its reverse (122420444444341), we get a palindrome (265864888468562).

The spelling of 143444444024221 in words is "one hundred forty-three trillion, four hundred forty-four billion, four hundred forty-four million, twenty-four thousand, two hundred twenty-one".