143331456 has 128 divisors (see below), whose sum is σ = 402206400. Its totient is φ = 45158400.

The previous prime is 143331443. The next prime is 143331467. The reversal of 143331456 is 654133341.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 679191 + ... + 679401.

Almost surely, 2^143331456 is an apocalyptic number.

143331456 is a gapful number since it is divisible by the number (16) 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 143331456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201103200).

143331456 is an abundant number, since it is smaller than the sum of its proper divisors (258874944).

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

143331456 is a wasteful number, since it uses less digits than its factorization.

143331456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 306 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 143331456 is about 11972.1115931986. Note that the first 3 decimals coincide. The cubic root of 143331456 is about 523.3358717156.

Adding to 143331456 its reverse (654133341), we get a palindrome (797464797).

The spelling of 143331456 in words is "one hundred forty-three million, three hundred thirty-one thousand, four hundred fifty-six".