143649543549 has 16 divisors (see below), whose sum is σ = 195680563200. Its totient is φ = 93693957360.

The previous prime is 143649543503. The next prime is 143649543553. The reversal of 143649543549 is 945345946341.

It is a happy number.

143649543549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143649543549 - 2¹⁷ = 143649412477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143649543559) 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 15 ways as a sum of consecutive naturals, for example, 194352 + ... + 570150.

It is an arithmetic number, because the mean of its divisors is an integer number (12230035200).

Almost surely, 2^143649543549 is an apocalyptic number.

It is an amenable number.

143649543549 is a deficient number, since it is larger than the sum of its proper divisors (52031019651).

143649543549 is a wasteful number, since it uses less digits than its factorization.

143649543549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378560.

The product of its digits is 27993600, while the sum is 57.

The spelling of 143649543549 in words is "one hundred forty-three billion, six hundred forty-nine million, five hundred forty-three thousand, five hundred forty-nine".