143271893840 has 160 divisors (see below), whose sum is σ = 344585936160. Its totient is φ = 55372382208.

The previous prime is 143271893819. The next prime is 143271893851. The reversal of 143271893840 is 48398172341.

143271893840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 120306309904 + 22965583936 = 346852^2 + 151544^2 .

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 118113074 + ... + 118114286.

It is an arithmetic number, because the mean of its divisors is an integer number (2153662101).

Almost surely, 2^143271893840 is an apocalyptic number.

143271893840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143271893840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172292968080).

143271893840 is an abundant number, since it is smaller than the sum of its proper divisors (201314042320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143271893840 is a wasteful number, since it uses less digits than its factorization.

143271893840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 143271893840 in words is "one hundred forty-three billion, two hundred seventy-one million, eight hundred ninety-three thousand, eight hundred forty".