144022643 has 4 divisors (see below), whose sum is σ = 144051480. Its totient is φ = 143993808.

The previous prime is 144022633. The next prime is 144022661. The reversal of 144022643 is 346220441.

144022643 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 a cyclic number.

It is not a de Polignac number, because 144022643 - 2¹⁴ = 144006259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144022633) 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, 4778 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (36012870).

Almost surely, 2^144022643 is an apocalyptic number.

144022643 is a deficient number, since it is larger than the sum of its proper divisors (28837).

144022643 is an equidigital number, since it uses as much as digits as its factorization.

144022643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28836.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 144022643 is about 12000.9434212482. The cubic root of 144022643 is about 524.1757502942.

The spelling of 144022643 in words is "one hundred forty-four million, twenty-two thousand, six hundred forty-three".