143220000 has 480 divisors, whose sum is σ = 604606464. Its totient is φ = 28800000.

The previous prime is 143219983. The next prime is 143220001. The reversal of 143220000 is 22341.

It is a tau number, because it is divible by the number of its divisors (480).

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 (143220001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4619985 + ... + 4620015.

Almost surely, 2^143220000 is an apocalyptic number.

143220000 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 143220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302303232).

143220000 is an abundant number, since it is smaller than the sum of its proper divisors (461386464).

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

143220000 is a wasteful number, since it uses less digits than its factorization.

143220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 59 counting only the distinct ones).

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

The square root of 143220000 is about 11967.4558699834. The cubic root of 143220000 is about 523.2001861047.

Adding to 143220000 its reverse (22341), we get a palindrome (143242341).

The spelling of 143220000 in words is "one hundred forty-three million, two hundred twenty thousand".