144648793 has 4 divisors (see below), whose sum is σ = 144916708. Its totient is φ = 144380880.

The previous prime is 144648787. The next prime is 144648811. The reversal of 144648793 is 397846441.

144648793 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 can be written as a sum of positive squares in 2 ways, for example, as 57562569 + 87086224 = 7587^2 + 9332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144648793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144648703) 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, 133146 + ... + 134227.

It is an arithmetic number, because the mean of its divisors is an integer number (36229177).

Almost surely, 2^144648793 is an apocalyptic number.

It is an amenable number.

144648793 is a deficient number, since it is larger than the sum of its proper divisors (267915).

144648793 is an equidigital number, since it uses as much as digits as its factorization.

144648793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267914.

The product of its digits is 580608, while the sum is 46.

The square root of 144648793 is about 12027.0026606798. The cubic root of 144648793 is about 524.9342841403.

The spelling of 144648793 in words is "one hundred forty-four million, six hundred forty-eight thousand, seven hundred ninety-three".