143881744 has 80 divisors (see below), whose sum is σ = 312301440. Its totient is φ = 63866880.

The previous prime is 143881739. The next prime is 143881747. The reversal of 143881744 is 447188341.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 143881697 and 143881706.

It is not an unprimeable number, because it can be changed into a prime (143881747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681799 + ... + 682009.

It is an arithmetic number, because the mean of its divisors is an integer number (3903768).

Almost surely, 2^143881744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143881744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156150720).

143881744 is an abundant number, since it is smaller than the sum of its proper divisors (168419696).

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

143881744 is a wasteful number, since it uses less digits than its factorization.

143881744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 362 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 143881744 is about 11995.0716546422. The cubic root of 143881744 is about 524.0047588092.

The spelling of 143881744 in words is "one hundred forty-three million, eight hundred eighty-one thousand, seven hundred forty-four".