143873920 has 64 divisors (see below), whose sum is σ = 352401840. Its totient is φ = 56135680.

The previous prime is 143873881. The next prime is 143873963. The reversal of 143873920 is 29378341.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 143873920.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23499 + ... + 28981.

Almost surely, 2^143873920 is an apocalyptic number.

143873920 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 143873920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176200920).

143873920 is an abundant number, since it is smaller than the sum of its proper divisors (208527920).

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

143873920 is an equidigital number, since it uses as much as digits as its factorization.

143873920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543 (or 5531 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 143873920 is about 11994.7455162667. The cubic root of 143873920 is about 523.9952605286.

The spelling of 143873920 in words is "one hundred forty-three million, eight hundred seventy-three thousand, nine hundred twenty".