144520743 has 4 divisors (see below), whose sum is σ = 192694328. Its totient is φ = 96347160.

The previous prime is 144520709. The next prime is 144520759. The reversal of 144520743 is 347025441.

144520743 is digitally balanced in base 2, 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 not a de Polignac number, because 144520743 - 2²⁰ = 143472167 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 144520743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144520703) 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, 24086788 + ... + 24086793.

It is an arithmetic number, because the mean of its divisors is an integer number (48173582).

Almost surely, 2^144520743 is an apocalyptic number.

144520743 is a deficient number, since it is larger than the sum of its proper divisors (48173585).

144520743 is an equidigital number, since it uses as much as digits as its factorization.

144520743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48173584.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 144520743 is about 12021.6780442665. The cubic root of 144520743 is about 524.7793394676.

The spelling of 144520743 in words is "one hundred forty-four million, five hundred twenty thousand, seven hundred forty-three".