144630641621 has 8 divisors (see below), whose sum is σ = 146381567040. Its totient is φ = 142882513312.

The previous prime is 144630641611. The next prime is 144630641629. The reversal of 144630641621 is 126146036441.

144630641621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144630641621 - 2⁶ = 144630641557 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 (144630641629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595145 + ... + 802158.

It is an arithmetic number, because the mean of its divisors is an integer number (18297695880).

Almost surely, 2^144630641621 is an apocalyptic number.

It is an amenable number.

144630641621 is a deficient number, since it is larger than the sum of its proper divisors (1750925419).

144630641621 is a wasteful number, since it uses less digits than its factorization.

144630641621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398555.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 144630641621 in words is "one hundred forty-four billion, six hundred thirty million, six hundred forty-one thousand, six hundred twenty-one".