143226144 has 144 divisors (see below), whose sum is σ = 428736672. Its totient is φ = 47029248.

The previous prime is 143226143. The next prime is 143226151. The reversal of 143226144 is 441622341.

It is a happy number.

143226144 is a `hidden beast` number, since 1 + 43 + 2 + 2 + 614 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (143226143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 878607 + ... + 878769.

It is an arithmetic number, because the mean of its divisors is an integer number (2977338).

Almost surely, 2^143226144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143226144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214368336).

143226144 is an abundant number, since it is smaller than the sum of its proper divisors (285510528).

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

143226144 is a wasteful number, since it uses less digits than its factorization.

143226144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 281 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 143226144 is about 11967.7125633932. The cubic root of 143226144 is about 523.2076675924.

Adding to 143226144 its reverse (441622341), we get a palindrome (584848485).

The spelling of 143226144 in words is "one hundred forty-three million, two hundred twenty-six thousand, one hundred forty-four".