144661722403 has 8 divisors (see below), whose sum is σ = 157834108656. Its totient is φ = 131492889600.

The previous prime is 144661722349. The next prime is 144661722431. The reversal of 144661722403 is 304227166441.

It is a happy number.

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 144661722403 - 2⁹ = 144661721891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144661722493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802878 + ... + 966403.

It is an arithmetic number, because the mean of its divisors is an integer number (19729263582).

Almost surely, 2^144661722403 is an apocalyptic number.

144661722403 is a deficient number, since it is larger than the sum of its proper divisors (13172386253).

144661722403 is a wasteful number, since it uses less digits than its factorization.

144661722403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776725.

The product of its (nonzero) digits is 193536, while the sum is 40.

Adding to 144661722403 its reverse (304227166441), we get a palindrome (448888888844).

The spelling of 144661722403 in words is "one hundred forty-four billion, six hundred sixty-one million, seven hundred twenty-two thousand, four hundred three".