143556 has 24 divisors (see below), whose sum is σ = 383040. Its totient is φ = 40992.

The previous prime is 143551. The next prime is 143567. The reversal of 143556 is 655341.

It is not an unprimeable number, because it can be changed into a prime (143551) by changing a digit.

143556 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 7 ways as a sum of consecutive naturals, for example, 771 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (15960).

2¹⁴³⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

143556 is an abundant number, since it is smaller than the sum of its proper divisors (239484).

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

143556 is a wasteful number, since it uses less digits than its factorization.

143556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1721 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 143556 is about 378.8878462025. The cubic root of 143556 is about 52.3609016266.

Adding to 143556 its reverse (655341), we get a palindrome (798897).

It can be divided in two parts, 14 and 3556, that added together give a triangular number (3570 = T₈₄).

The spelling of 143556 in words is "one hundred forty-three thousand, five hundred fifty-six".