144830536221 has 24 divisors (see below), whose sum is σ = 226403927040. Its totient is φ = 82108639872.

The previous prime is 144830536217. The next prime is 144830536243. The reversal of 144830536221 is 122635038441.

It is not a de Polignac number, because 144830536221 - 2² = 144830536217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144830536221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144830536261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3860236 + ... + 3897573.

It is an arithmetic number, because the mean of its divisors is an integer number (9433496960).

Almost surely, 2^144830536221 is an apocalyptic number.

It is an amenable number.

144830536221 is a deficient number, since it is larger than the sum of its proper divisors (81573390819).

144830536221 is a wasteful number, since it uses less digits than its factorization.

144830536221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757953 (or 7757946 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 144830536221 in words is "one hundred forty-four billion, eight hundred thirty million, five hundred thirty-six thousand, two hundred twenty-one".