143520 has 96 divisors (see below), whose sum is σ = 508032. Its totient is φ = 33792.

The previous prime is 143519. The next prime is 143527. The reversal of 143520 is 25341.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 143520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143527) 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 15 ways as a sum of consecutive naturals, for example, 6229 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (5292).

143520 is a Friedman number, since it can be written as 230*(5^4-1), using all its digits and the basic arithmetic operations.

2¹⁴³⁵²⁰ is an apocalyptic number.

143520 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 143520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254016).

143520 is an abundant number, since it is smaller than the sum of its proper divisors (364512).

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

143520 is a wasteful number, since it uses less digits than its factorization.

143520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 143520 is about 378.8403357617. The cubic root of 143520 is about 52.3565243568.

Adding to 143520 its reverse (25341), we get a palindrome (168861).

The spelling of 143520 in words is "one hundred forty-three thousand, five hundred twenty".