143766 has 36 divisors (see below), whose sum is σ = 364572. Its totient is φ = 40824.

The previous prime is 143743. The next prime is 143779. The reversal of 143766 is 667341.

It is a congruent number.

It is an unprimeable number.

143766 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 801 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (10127).

2¹⁴³⁷⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182286).

143766 is an abundant number, since it is smaller than the sum of its proper divisors (220806).

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

143766 is a wasteful number, since it uses less digits than its factorization.

143766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 175 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 143766 is about 379.1648717906. The cubic root of 143766 is about 52.3864211265.

It can be divided in two parts, 143 and 766, that added together give a palindrome (909).

The spelling of 143766 in words is "one hundred forty-three thousand, seven hundred sixty-six".