143538 has 16 divisors (see below), whose sum is σ = 293760. Its totient is φ = 46736.

The previous prime is 143537. The next prime is 143551. The reversal of 143538 is 835341.

It is not an unprimeable number, because it can be changed into a prime (143537) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28 + ... + 536.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2¹⁴³⁵³⁸ is an apocalyptic number.

143538 is an abundant number, since it is smaller than the sum of its proper divisors (150222).

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

143538 is a wasteful number, since it uses less digits than its factorization.

143538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its digits is 1440, while the sum is 24.

The square root of 143538 is about 378.8640917268. The cubic root of 143538 is about 52.3587130832.

Adding to 143538 its reverse (835341), we get a palindrome (978879).

The spelling of 143538 in words is "one hundred forty-three thousand, five hundred thirty-eight".