143520400 has 45 divisors (see below), whose sum is σ = 345384361. Its totient is φ = 57312320.

The previous prime is 143520389. The next prime is 143520401. The reversal of 143520400 is 4025341.

The square root of 143520400 is 11980.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 51667344 + 91853056 = 7188^2 + 9584^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143520401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 239301 + ... + 239899.

Almost surely, 2^143520400 is an apocalyptic number.

143520400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143520400 is the 11980-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143520400

143520400 is an abundant number, since it is smaller than the sum of its proper divisors (201863961).

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

143520400 is an frugal number, since it uses more digits than its factorization.

143520400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The cubic root of 143520400 is about 523.5657299712.

Adding to 143520400 its reverse (4025341), we get a palindrome (147545741).

The spelling of 143520400 in words is "one hundred forty-three million, five hundred twenty thousand, four hundred".