144228871 has 4 divisors (see below), whose sum is σ = 145197000. Its totient is φ = 143260744.

The previous prime is 144228869. The next prime is 144228881. The reversal of 144228871 is 178822441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178822441 = 7 ⋅25546063.

It is a cyclic number.

It is not a de Polignac number, because 144228871 - 2¹ = 144228869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144228871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144228811) 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, 483841 + ... + 484138.

It is an arithmetic number, because the mean of its divisors is an integer number (36299250).

Almost surely, 2^144228871 is an apocalyptic number.

144228871 is a deficient number, since it is larger than the sum of its proper divisors (968129).

144228871 is an equidigital number, since it uses as much as digits as its factorization.

144228871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968128.

The product of its digits is 28672, while the sum is 37.

The square root of 144228871 is about 12009.5325054725. The cubic root of 144228871 is about 524.4258224563.

The spelling of 144228871 in words is "one hundred forty-four million, two hundred twenty-eight thousand, eight hundred seventy-one".