144450223738 has 4 divisors (see below), whose sum is σ = 216675335610. Its totient is φ = 72225111868.

The previous prime is 144450223721. The next prime is 144450223739. The reversal of 144450223738 is 837322054441.

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

It can be written as a sum of positive squares in only one way, i.e., 108700111809 + 35750111929 = 329697^2 + 189077^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144450223694 and 144450223703.

It is not an unprimeable number, because it can be changed into a prime (144450223739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36112555933 + ... + 36112555936.

Almost surely, 2^144450223738 is an apocalyptic number.

144450223738 is a deficient number, since it is larger than the sum of its proper divisors (72225111872).

144450223738 is an equidigital number, since it uses as much as digits as its factorization.

144450223738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72225111871.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 144450223738 in words is "one hundred forty-four billion, four hundred fifty million, two hundred twenty-three thousand, seven hundred thirty-eight".