144021723 has 16 divisors (see below), whose sum is σ = 200948256. Its totient is φ = 91653120.

The previous prime is 144021721. The next prime is 144021733. The reversal of 144021723 is 327120441.

It is a happy number.

144021723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144021723 - 2¹ = 144021721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144021693 and 144021702.

It is not an unprimeable number, because it can be changed into a prime (144021721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6358 + ... + 18123.

It is an arithmetic number, because the mean of its divisors is an integer number (12559266).

Almost surely, 2^144021723 is an apocalyptic number.

144021723 is a deficient number, since it is larger than the sum of its proper divisors (56926533).

144021723 is a wasteful number, since it uses less digits than its factorization.

144021723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24574.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 144021723 is about 12000.9050908671. The cubic root of 144021723 is about 524.1746341672.

The spelling of 144021723 in words is "one hundred forty-four million, twenty-one thousand, seven hundred twenty-three".