144128047 has 4 divisors (see below), whose sum is σ = 164717776. Its totient is φ = 123538320.

The previous prime is 144128029. The next prime is 144128063. The reversal of 144128047 is 740821441.

It is a happy number.

144128047 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, and also an emirpimes, since its reverse is a distinct semiprime: 740821441 = 7741 ⋅95701.

It is a cyclic number.

It is not a de Polignac number, because 144128047 - 2¹¹ = 144125999 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 (144128447) 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, 10294854 + ... + 10294867.

It is an arithmetic number, because the mean of its divisors is an integer number (41179444).

Almost surely, 2^144128047 is an apocalyptic number.

144128047 is a deficient number, since it is larger than the sum of its proper divisors (20589729).

144128047 is an equidigital number, since it uses as much as digits as its factorization.

144128047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20589728.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 144128047 is about 12005.3341061380. The cubic root of 144128047 is about 524.3035930341.

Adding to 144128047 its reverse (740821441), we get a palindrome (884949488).

The spelling of 144128047 in words is "one hundred forty-four million, one hundred twenty-eight thousand, forty-seven".