143222000 has 80 divisors (see below), whose sum is σ = 364634400. Its totient is φ = 54259200.

The previous prime is 143221951. The next prime is 143222021. The reversal of 143222000 is 222341.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×143222000³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36116 + ... + 39884.

It is an arithmetic number, because the mean of its divisors is an integer number (4557930).

Almost surely, 2^143222000 is an apocalyptic number.

143222000 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 143222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182317200).

143222000 is an abundant number, since it is smaller than the sum of its proper divisors (221412400).

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

143222000 is a wasteful number, since it uses less digits than its factorization.

143222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811 (or 3795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 143222000 is about 11967.5394296405. The cubic root of 143222000 is about 523.2026215083.

Adding to 143222000 its reverse (222341), we get a palindrome (143444341).

It can be divided in two parts, 1432 and 22000, that added together give a palindrome (23432).

The spelling of 143222000 in words is "one hundred forty-three million, two hundred twenty-two thousand".