143220234 has 8 divisors (see below), whose sum is σ = 286440480. Its totient is φ = 47740076.

The previous prime is 143220221. The next prime is 143220251. The reversal of 143220234 is 432022341.

It is a sphenic number, since it is the product of 3 distinct primes.

143220234 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 143220234.

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 3 ways as a sum of consecutive naturals, for example, 11935014 + ... + 11935025.

It is an arithmetic number, because the mean of its divisors is an integer number (35805060).

Almost surely, 2^143220234 is an apocalyptic number.

143220234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

143220234 is a wasteful number, since it uses less digits than its factorization.

143220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23870044.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143220234 is about 11967.4656464934. The cubic root of 143220234 is about 523.2004710481.

Adding to 143220234 its reverse (432022341), we get a palindrome (575242575).

The spelling of 143220234 in words is "one hundred forty-three million, two hundred twenty thousand, two hundred thirty-four".