143980 has 24 divisors (see below), whose sum is σ = 316512. Its totient is φ = 54912.

The previous prime is 143977. The next prime is 143981. The reversal of 143980 is 89341.

143980 = T₅₅ + T₅₆ + ... + T₁₀₀.

It is not an unprimeable number, because it can be changed into a prime (143981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (13188).

2¹⁴³⁹⁸⁰ is an apocalyptic number.

143980 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 143980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158256).

143980 is an abundant number, since it is smaller than the sum of its proper divisors (172532).

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

143980 is a wasteful number, since it uses less digits than its factorization.

143980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 143980 is about 379.4469659913. The cubic root of 143980 is about 52.4124011594.

The spelling of 143980 in words is "one hundred forty-three thousand, nine hundred eighty".