4000144123 has 4 divisors (see below), whose sum is σ = 4001602000. Its totient is φ = 3998686248.

The previous prime is 4000144051. The next prime is 4000144151. The reversal of 4000144123 is 3214410004.

4000144123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4000144123 - 2⁹ = 4000143611 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 4000144123.

It is not an unprimeable number, because it can be changed into a prime (4000144193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724815 + ... + 730312.

It is an arithmetic number, because the mean of its divisors is an integer number (1000400500).

Almost surely, 2^4000144123 is an apocalyptic number.

4000144123 is a deficient number, since it is larger than the sum of its proper divisors (1457877).

4000144123 is a wasteful number, since it uses less digits than its factorization.

4000144123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457876.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4000144123 is about 63246.6925854625. The cubic root of 4000144123 is about 1587.4201168227.

Adding to 4000144123 its reverse (3214410004), we get a palindrome (7214554127).

The spelling of 4000144123 in words is "four billion, one hundred forty-four thousand, one hundred twenty-three".