143406 has 24 divisors (see below), whose sum is σ = 321984. Its totient is φ = 46080.

The previous prime is 143401. The next prime is 143413. The reversal of 143406 is 604341.

143406 is nontrivially palindromic in base 12.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143406.

It is not an unprimeable number, because it can be changed into a prime (143401) 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 11 ways as a sum of consecutive naturals, for example, 430 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (13416).

2¹⁴³⁴⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160992).

143406 is an abundant number, since it is smaller than the sum of its proper divisors (178578).

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

143406 is a wasteful number, since it uses less digits than its factorization.

143406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143406 is about 378.6898467084. The cubic root of 143406 is about 52.3426581713.

Adding to 143406 its reverse (604341), we get a palindrome (747747).

The spelling of 143406 in words is "one hundred forty-three thousand, four hundred six".