144443983 has 4 divisors (see below), whose sum is σ = 149424840. Its totient is φ = 139463128.

The previous prime is 144443953. The next prime is 144443993. The reversal of 144443983 is 389344441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144443983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144443953) 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, 2490385 + ... + 2490442.

It is an arithmetic number, because the mean of its divisors is an integer number (37356210).

Almost surely, 2^144443983 is an apocalyptic number.

144443983 is a deficient number, since it is larger than the sum of its proper divisors (4980857).

144443983 is an equidigital number, since it uses as much as digits as its factorization.

144443983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4980856.

The product of its digits is 165888, while the sum is 40.

The square root of 144443983 is about 12018.4850542820. The cubic root of 144443983 is about 524.6864134855.

The spelling of 144443983 in words is "one hundred forty-four million, four hundred forty-three thousand, nine hundred eighty-three".