144648643 has 2 divisors, whose sum is σ = 144648644. Its totient is φ = 144648642.

The previous prime is 144648619. The next prime is 144648649. The reversal of 144648643 is 346846441.

144648643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144648643 - 2⁵ = 144648611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144648596 and 144648605.

It is not a weakly prime, because it can be changed into another prime (144648649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72324321 + 72324322.

It is an arithmetic number, because the mean of its divisors is an integer number (72324322).

Almost surely, 2^144648643 is an apocalyptic number.

144648643 is a deficient number, since it is larger than the sum of its proper divisors (1).

144648643 is an equidigital number, since it uses as much as digits as its factorization.

144648643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 40.

The square root of 144648643 is about 12026.9964247105. The cubic root of 144648643 is about 524.9341026889.

The spelling of 144648643 in words is "one hundred forty-four million, six hundred forty-eight thousand, six hundred forty-three".