143400 has 48 divisors (see below), whose sum is σ = 446400. Its totient is φ = 38080.

The previous prime is 143387. The next prime is 143401. The reversal of 143400 is 4341.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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 (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (9300).

2¹⁴³⁴⁰⁰ is an apocalyptic number.

143400 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 143400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223200).

143400 is an abundant number, since it is smaller than the sum of its proper divisors (303000).

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

143400 is a wasteful number, since it uses less digits than its factorization.

143400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 143400 is about 378.6819245752. The cubic root of 143400 is about 52.3419281686.

Adding to 143400 its reverse (4341), we get a palindrome (147741).

The spelling of 143400 in words is "one hundred forty-three thousand, four hundred", and thus it is an iban number.