143780 has 48 divisors (see below), whose sum is σ = 376320. Its totient is φ = 44928.

The previous prime is 143779. The next prime is 143791. The reversal of 143780 is 87341.

143780 = T₆₄ + T₆₅ + ... + T₁₀₃.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1781 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (7840).

2¹⁴³⁷⁸⁰ is an apocalyptic number.

143780 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 143780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188160).

143780 is an abundant number, since it is smaller than the sum of its proper divisors (232540).

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

143780 is a wasteful number, since it uses less digits than its factorization.

143780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 143780 is about 379.1833329670. The cubic root of 143780 is about 52.3881215427.

It can be divided in two parts, 1437 and 80, that multiplied together give a triangular number (114960 = T₄₇₉).

The spelling of 143780 in words is "one hundred forty-three thousand, seven hundred eighty".