144631431573 has 16 divisors (see below), whose sum is σ = 204529919616. Its totient is φ = 90596080640.

The previous prime is 144631431557. The next prime is 144631431617. The reversal of 144631431573 is 375134136441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 144631431573 - 2⁴ = 144631431557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144631431523) 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, 2360913 + ... + 2421398.

It is an arithmetic number, because the mean of its divisors is an integer number (12783119976).

Almost surely, 2^144631431573 is an apocalyptic number.

It is an amenable number.

144631431573 is a deficient number, since it is larger than the sum of its proper divisors (59898488043).

144631431573 is a wasteful number, since it uses less digits than its factorization.

144631431573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782924.

The product of its digits is 362880, while the sum is 42.

The spelling of 144631431573 in words is "one hundred forty-four billion, six hundred thirty-one million, four hundred thirty-one thousand, five hundred seventy-three".