144228612621 has 16 divisors (see below), whose sum is σ = 198531404288. Its totient is φ = 93039840000.

The previous prime is 144228612611. The next prime is 144228612637. The reversal of 144228612621 is 126216822441.

It is not a de Polignac number, because 144228612621 - 2⁹ = 144228612109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144228612621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144228612611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750945 + ... + 923241.

It is an arithmetic number, because the mean of its divisors is an integer number (12408212768).

Almost surely, 2^144228612621 is an apocalyptic number.

It is an amenable number.

144228612621 is a deficient number, since it is larger than the sum of its proper divisors (54302791667).

144228612621 is a wasteful number, since it uses less digits than its factorization.

144228612621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181332.

The product of its digits is 73728, while the sum is 39.

The spelling of 144228612621 in words is "one hundred forty-four billion, two hundred twenty-eight million, six hundred twelve thousand, six hundred twenty-one".