4144520023 has 16 divisors (see below), whose sum is σ = 4840430400. Its totient is φ = 3474971136.

The previous prime is 4144519987. The next prime is 4144520033. The reversal of 4144520023 is 3200254414.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4144520023 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 4144520023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144520033) 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, 108453 + ... + 141601.

It is an arithmetic number, because the mean of its divisors is an integer number (302526900).

Almost surely, 2^4144520023 is an apocalyptic number.

4144520023 is a deficient number, since it is larger than the sum of its proper divisors (695910377).

4144520023 is a wasteful number, since it uses less digits than its factorization.

4144520023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33546.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4144520023 is about 64377.9467131408. The cubic root of 4144520023 is about 1606.2929282879.

Adding to 4144520023 its reverse (3200254414), we get a palindrome (7344774437).

The spelling of 4144520023 in words is "four billion, one hundred forty-four million, five hundred twenty thousand, twenty-three".