144213173639 has 8 divisors (see below), whose sum is σ = 147843653328. Its totient is φ = 140588079040.

The previous prime is 144213173633. The next prime is 144213173641. The reversal of 144213173639 is 936371312441.

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 144213173639 - 2²⁰ = 144212125063 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 144213173639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144213173633) 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, 1292012 + ... + 1399185.

It is an arithmetic number, because the mean of its divisors is an integer number (18480456666).

Almost surely, 2^144213173639 is an apocalyptic number.

144213173639 is a deficient number, since it is larger than the sum of its proper divisors (3630479689).

144213173639 is a wasteful number, since it uses less digits than its factorization.

144213173639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692545.

The product of its digits is 326592, while the sum is 44.

The spelling of 144213173639 in words is "one hundred forty-four billion, two hundred thirteen million, one hundred seventy-three thousand, six hundred thirty-nine".