144493647 has 4 divisors (see below), whose sum is σ = 192658200. Its totient is φ = 96329096.

The previous prime is 144493637. The next prime is 144493649. The reversal of 144493647 is 746394441.

144493647 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 144493647 - 2¹⁵ = 144460879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144493599 and 144493608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144493649) 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, 24082272 + ... + 24082277.

It is an arithmetic number, because the mean of its divisors is an integer number (48164550).

Almost surely, 2^144493647 is an apocalyptic number.

144493647 is a deficient number, since it is larger than the sum of its proper divisors (48164553).

144493647 is an equidigital number, since it uses as much as digits as its factorization.

144493647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48164552.

The product of its digits is 290304, while the sum is 42.

The square root of 144493647 is about 12020.5510273032. The cubic root of 144493647 is about 524.7465406932.

The spelling of 144493647 in words is "one hundred forty-four million, four hundred ninety-three thousand, six hundred forty-seven".